402837372849 has 8 divisors (see below), whose sum is σ = 538356952672. Its totient is φ = 267938020800.

The previous prime is 402837372841. The next prime is 402837372859. The reversal of 402837372849 is 948273738204.

It is a happy number.

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

It is not a de Polignac number, because 402837372849 - 2³ = 402837372841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402837372841) 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, 155055427 + ... + 155058024.

It is an arithmetic number, because the mean of its divisors is an integer number (67294619084).

Almost surely, 2^402837372849 is an apocalyptic number.

It is an amenable number.

402837372849 is a deficient number, since it is larger than the sum of its proper divisors (135519579823).

402837372849 is a wasteful number, since it uses less digits than its factorization.

402837372849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310113887.

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 402837372849 in words is "four hundred two billion, eight hundred thirty-seven million, three hundred seventy-two thousand, eight hundred forty-nine".