1538477076940 has 24 divisors (see below), whose sum is σ = 3285561217680. Its totient is φ = 604960477248.

The previous prime is 1538477076937. The next prime is 1538477077001. The reversal of 1538477076940 is 496707748351.

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, 651895887 + ... + 651898246.

It is an arithmetic number, because the mean of its divisors is an integer number (136898384070).

Almost surely, 2^{1538477076940} is an apocalyptic number.

1538477076940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1538477076940 is an abundant number, since it is smaller than the sum of its proper divisors (1747084140740).

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

1538477076940 is a wasteful number, since it uses less digits than its factorization.

1538477076940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303794201 (or 1303794199 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 61.

The spelling of 1538477076940 in words is "one trillion, five hundred thirty-eight billion, four hundred seventy-seven million, seventy-six thousand, nine hundred forty".