402774365745 has 48 divisors (see below), whose sum is σ = 724164355200. Its totient is φ = 206943061248.

The previous prime is 402774365731. The next prime is 402774365771. The reversal of 402774365745 is 547563477204.

402774365745 is a `hidden beast` number, since 4 + 0 + 27 + 7 + 43 + 6 + 574 + 5 = 666.

It is not a de Polignac number, because 402774365745 - 2⁴ = 402774365729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402774365691 and 402774365700.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1284445 + ... + 1566954.

It is an arithmetic number, because the mean of its divisors is an integer number (15086757400).

Almost surely, 2^402774365745 is an apocalyptic number.

402774365745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402774365745 is a deficient number, since it is larger than the sum of its proper divisors (321389989455).

402774365745 is a wasteful number, since it uses less digits than its factorization.

402774365745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851526 (or 2851523 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 54.

The spelling of 402774365745 in words is "four hundred two billion, seven hundred seventy-four million, three hundred sixty-five thousand, seven hundred forty-five".