402908093937 has 6 divisors (see below), whose sum is σ = 581978357922. Its totient is φ = 268605395952.

The previous prime is 402908093857. The next prime is 402908093953. The reversal of 402908093937 is 739390809204.

It can be written as a sum of positive squares in only one way, i.e., 394887816801 + 8020277136 = 628401^2 + 89556^2 .

It is not a de Polignac number, because 402908093937 - 2¹⁰ = 402908092913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402908093537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22383782988 + ... + 22383783005.

It is an arithmetic number, because the mean of its divisors is an integer number (96996392987).

Almost surely, 2^402908093937 is an apocalyptic number.

It is an amenable number.

402908093937 is a deficient number, since it is larger than the sum of its proper divisors (179070263985).

402908093937 is a wasteful number, since it uses less digits than its factorization.

402908093937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44767565999 (or 44767565996 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 402908093937 in words is "four hundred two billion, nine hundred eight million, ninety-three thousand, nine hundred thirty-seven".