902139638401 has 8 divisors (see below), whose sum is σ = 957033084384. Its totient is φ = 847449126720.

The previous prime is 902139638363. The next prime is 902139638423. The reversal of 902139638401 is 104836931209.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 902139638401 - 2⁷ = 902139638273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (902139638201) 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, 50724415 + ... + 50742196.

It is an arithmetic number, because the mean of its divisors is an integer number (119629135548).

Almost surely, 2^902139638401 is an apocalyptic number.

It is an amenable number.

902139638401 is a deficient number, since it is larger than the sum of its proper divisors (54893445983).

902139638401 is a wasteful number, since it uses less digits than its factorization.

902139638401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101467151.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 902139638401 in words is "nine hundred two billion, one hundred thirty-nine million, six hundred thirty-eight thousand, four hundred one".