402949486688 has 36 divisors (see below), whose sum is σ = 922826283372. Its totient is φ = 172692636480.

The previous prime is 402949486663. The next prime is 402949486777. The reversal of 402949486688 is 886684949204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128489978 + ... + 128493113.

It is an arithmetic number, because the mean of its divisors is an integer number (25634063427).

Almost surely, 2^402949486688 is an apocalyptic number.

It is an amenable number.

402949486688 is an abundant number, since it is smaller than the sum of its proper divisors (519876796684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402949486688 is a wasteful number, since it uses less digits than its factorization.

402949486688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256983115 (or 256983100 counting only the distinct ones).

The product of its (nonzero) digits is 191102976, while the sum is 68.

The spelling of 402949486688 in words is "four hundred two billion, nine hundred forty-nine million, four hundred eighty-six thousand, six hundred eighty-eight".