6401356136 has 32 divisors (see below), whose sum is σ = 14313594240. Its totient is φ = 2624157888.

The previous prime is 6401356127. The next prime is 6401356141. The reversal of 6401356136 is 6316531046.

It is a junction number, because it is equal to n+sod(n) for n = 6401356096 and 6401356105.

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, 2483711 + ... + 2486286.

It is an arithmetic number, because the mean of its divisors is an integer number (447299820).

Almost surely, 2^6401356136 is an apocalyptic number.

It is an amenable number.

6401356136 is an abundant number, since it is smaller than the sum of its proper divisors (7912238104).

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

6401356136 is a wasteful number, since it uses less digits than its factorization.

6401356136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970033 (or 4970029 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 6401356136 is about 80008.4754010474. The cubic root of 6401356136 is about 1856.7666622194.

The spelling of 6401356136 in words is "six billion, four hundred one million, three hundred fifty-six thousand, one hundred thirty-six".