20312500651634 has 8 divisors (see below), whose sum is σ = 30474019670400. Its totient is φ = 10154494094836.

The previous prime is 20312500651633. The next prime is 20312500651657. The reversal of 20312500651634 is 43615600521302.

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

It is not an unprimeable number, because it can be changed into a prime (20312500651633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878101034 + ... + 878124165.

It is an arithmetic number, because the mean of its divisors is an integer number (3809252458800).

Almost surely, 2^{20312500651634} is an apocalyptic number.

20312500651634 is a deficient number, since it is larger than the sum of its proper divisors (10161519018766).

20312500651634 is a wasteful number, since it uses less digits than its factorization.

20312500651634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756230984.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 20312500651634 in words is "twenty trillion, three hundred twelve billion, five hundred million, six hundred fifty-one thousand, six hundred thirty-four".