38097765109640 has 32 divisors (see below), whose sum is σ = 85835966112000. Its totient is φ = 15218484778944.

The previous prime is 38097765109597. The next prime is 38097765109643. The reversal of 38097765109640 is 4690156779083.

It is not an unprimeable number, because it can be changed into a prime (38097765109643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644384600 + ... + 644443719.

It is an arithmetic number, because the mean of its divisors is an integer number (2682373941000).

Almost surely, 2^{38097765109640} is an apocalyptic number.

It is an amenable number.

38097765109640 is an abundant number, since it is smaller than the sum of its proper divisors (47738201002360).

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

38097765109640 is a wasteful number, since it uses less digits than its factorization.

38097765109640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288829069 (or 1288829065 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 65.

The spelling of 38097765109640 in words is "thirty-eight trillion, ninety-seven billion, seven hundred sixty-five million, one hundred nine thousand, six hundred forty".