1375540899931 has 36 divisors (see below), whose sum is σ = 1549961642488. Its totient is φ = 1219558032000.

The previous prime is 1375540899899. The next prime is 1375540899977. The reversal of 1375540899931 is 1399980455731.

It is not a de Polignac number, because 1375540899931 - 2⁵ = 1375540899899 is a prime.

It is a super-2 number, since 2×1375540899931² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375540899431) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82691191 + ... + 82707823.

Almost surely, 2^{1375540899931} is an apocalyptic number.

1375540899931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1375540899931 is a deficient number, since it is larger than the sum of its proper divisors (174420742557).

1375540899931 is a wasteful number, since it uses less digits than its factorization.

1375540899931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16924 (or 16812 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 64.

The spelling of 1375540899931 in words is "one trillion, three hundred seventy-five billion, five hundred forty million, eight hundred ninety-nine thousand, nine hundred thirty-one".