1501997870872 has 8 divisors (see below), whose sum is σ = 2816246007900. Its totient is φ = 750998935432.

The previous prime is 1501997870869. The next prime is 1501997870873. The reversal of 1501997870872 is 2780787991051.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501997870873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93874866922 + ... + 93874866937.

Almost surely, 2^{1501997870872} is an apocalyptic number.

It is an amenable number.

1501997870872 is a deficient number, since it is larger than the sum of its proper divisors (1314248137028).

1501997870872 is a wasteful number, since it uses less digits than its factorization.

1501997870872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187749733865 (or 187749733861 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 64.

The spelling of 1501997870872 in words is "one trillion, five hundred one billion, nine hundred ninety-seven million, eight hundred seventy thousand, eight hundred seventy-two".