38401636128702 has 64 divisors (see below), whose sum is σ = 96741891316224. Its totient is φ = 9871621539840.

The previous prime is 38401636128659. The next prime is 38401636128829. The reversal of 38401636128702 is 20782163610483.

It is a happy number.

It is a super-2 number, since 2×38401636128702² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428410983 + ... + 428500610.

It is an arithmetic number, because the mean of its divisors is an integer number (1511592051816).

Almost surely, 2^{38401636128702} is an apocalyptic number.

38401636128702 is an abundant number, since it is smaller than the sum of its proper divisors (58340255187522).

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

38401636128702 is a wasteful number, since it uses less digits than its factorization.

38401636128702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856911713.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 38401636128702 in words is "thirty-eight trillion, four hundred one billion, six hundred thirty-six million, one hundred twenty-eight thousand, seven hundred two".