1307457656478 has 12 divisors (see below), whose sum is σ = 2832824922408. Its totient is φ = 435819218820.

The previous prime is 1307457656471. The next prime is 1307457656497. The reversal of 1307457656478 is 8746567547031.

1307457656478 is a `hidden beast` number, since 1 + 3 + 0 + 7 + 4 + 576 + 56 + 4 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307457656471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36318268218 + ... + 36318268253.

It is an arithmetic number, because the mean of its divisors is an integer number (236068743534).

Almost surely, 2^{1307457656478} is an apocalyptic number.

1307457656478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1307457656478 is an abundant number, since it is smaller than the sum of its proper divisors (1525367265930).

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

1307457656478 is a wasteful number, since it uses less digits than its factorization.

1307457656478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72636536479 (or 72636536476 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 63.

The spelling of 1307457656478 in words is "one trillion, three hundred seven billion, four hundred fifty-seven million, six hundred fifty-six thousand, four hundred seventy-eight".