38870697693940 has 48 divisors (see below), whose sum is σ = 93290582448000. Its totient is φ = 13326966640512.

The previous prime is 38870697693889. The next prime is 38870697693943. The reversal of 38870697693940 is 4939679607883.

It is a super-2 number, since 2×38870697693940² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38870697693943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13679386 + ... + 16274734.

It is an arithmetic number, because the mean of its divisors is an integer number (1943553801000).

Almost surely, 2^{38870697693940} is an apocalyptic number.

It is an amenable number.

38870697693940 is an abundant number, since it is smaller than the sum of its proper divisors (54419884754060).

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

38870697693940 is a wasteful number, since it uses less digits than its factorization.

38870697693940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702344 (or 2702342 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 79.

The spelling of 38870697693940 in words is "thirty-eight trillion, eight hundred seventy billion, six hundred ninety-seven million, six hundred ninety-three thousand, nine hundred forty".