215421468002 has 8 divisors (see below), whose sum is σ = 347988525276. Its totient is φ = 99425292912.

The previous prime is 215421468001. The next prime is 215421468011. The reversal of 215421468002 is 200864124512.

It can be written as a sum of positive squares in 2 ways, for example, as 214166253961 + 1255214041 = 462781^2 + 35429^2 .

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

It is a super-2 number, since 2×215421468002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (215421468001) 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, 4142720513 + ... + 4142720564.

Almost surely, 2^215421468002 is an apocalyptic number.

215421468002 is a deficient number, since it is larger than the sum of its proper divisors (132567057274).

215421468002 is a wasteful number, since it uses less digits than its factorization.

215421468002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8285441092.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 215421468002 in words is "two hundred fifteen billion, four hundred twenty-one million, four hundred sixty-eight thousand, two".