402135772346 has 16 divisors (see below), whose sum is σ = 752046120000. Its totient is φ = 156676274880.

The previous prime is 402135772333. The next prime is 402135772387. The reversal of 402135772346 is 643277531204.

It is a junction number, because it is equal to n+sod(n) for n = 402135772297 and 402135772306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305635471 + ... + 1305635778.

It is an arithmetic number, because the mean of its divisors is an integer number (47002882500).

Almost surely, 2^402135772346 is an apocalyptic number.

402135772346 is a deficient number, since it is larger than the sum of its proper divisors (349910347654).

402135772346 is a wasteful number, since it uses less digits than its factorization.

402135772346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611271269.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 402135772346 in words is "four hundred two billion, one hundred thirty-five million, seven hundred seventy-two thousand, three hundred forty-six".