1371605972652 has 72 divisors (see below), whose sum is σ = 3495532149200. Its totient is φ = 453461234688.

The previous prime is 1371605972591. The next prime is 1371605972699. The reversal of 1371605972652 is 2562795061731.

It is a happy number.

1371605972652 is a `hidden beast` number, since 1 + 3 + 7 + 1 + 605 + 9 + 7 + 26 + 5 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4913208 + ... + 5184864.

Almost surely, 2^{1371605972652} is an apocalyptic number.

1371605972652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1371605972652 is an abundant number, since it is smaller than the sum of its proper divisors (2123926176548).

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

1371605972652 is a wasteful number, since it uses less digits than its factorization.

1371605972652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272815 (or 272810 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 1371605972652 in words is "one trillion, three hundred seventy-one billion, six hundred five million, nine hundred seventy-two thousand, six hundred fifty-two".