690934368971 has 8 divisors (see below), whose sum is σ = 861424667904. Its totient is φ = 538390417320.

The previous prime is 690934368911. The next prime is 690934368973. The reversal of 690934368971 is 179863439096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-690934368971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 690934368898 and 690934368907.

It is not an unprimeable number, because it can be changed into a prime (690934368973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4486586735 + ... + 4486586888.

It is an arithmetic number, because the mean of its divisors is an integer number (107678083488).

Almost surely, 2^690934368971 is an apocalyptic number.

690934368971 is a deficient number, since it is larger than the sum of its proper divisors (170490298933).

690934368971 is a wasteful number, since it uses less digits than its factorization.

690934368971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8973173641.

The product of its (nonzero) digits is 52907904, while the sum is 65.

The spelling of 690934368971 in words is "six hundred ninety billion, nine hundred thirty-four million, three hundred sixty-eight thousand, nine hundred seventy-one".