402379370816 has 28 divisors (see below), whose sum is σ = 799087358388. Its totient is φ = 201034524672.

The previous prime is 402379370807. The next prime is 402379370821. The reversal of 402379370816 is 618073973204.

It can be written as a sum of positive squares in 2 ways, for example, as 346826766400 + 55552604416 = 588920^2 + 235696^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340731 + ... + 2506746.

Almost surely, 2^402379370816 is an apocalyptic number.

It is an amenable number.

402379370816 is a deficient number, since it is larger than the sum of its proper divisors (396707987572).

402379370816 is a wasteful number, since it uses less digits than its factorization.

402379370816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848786 (or 4848776 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 402379370816 in words is "four hundred two billion, three hundred seventy-nine million, three hundred seventy thousand, eight hundred sixteen".