1351640763477 has 24 divisors (see below), whose sum is σ = 1974037613184. Its totient is φ = 891117478944.

The previous prime is 1351640763427. The next prime is 1351640763509. The reversal of 1351640763477 is 7743670461531.

1351640763477 is a `hidden beast` number, since 1 + 3 + 5 + 164 + 0 + 7 + 6 + 3 + 477 = 666.

It is not a de Polignac number, because 1351640763477 - 2¹⁰ = 1351640762453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351640763427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328878 + ... + 1676735.

It is an arithmetic number, because the mean of its divisors is an integer number (82251567216).

Almost surely, 2^{1351640763477} is an apocalyptic number.

It is an amenable number.

1351640763477 is a deficient number, since it is larger than the sum of its proper divisors (622396849707).

1351640763477 is a wasteful number, since it uses less digits than its factorization.

1351640763477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006449 (or 2006446 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 1351640763477 in words is "one trillion, three hundred fifty-one billion, six hundred forty million, seven hundred sixty-three thousand, four hundred seventy-seven".