920913692457 has 64 divisors (see below), whose sum is σ = 1440552960000. Its totient is φ = 517693619520.

The previous prime is 920913692437. The next prime is 920913692483. The reversal of 920913692457 is 754296319029.

It is not a de Polignac number, because 920913692457 - 2¹⁴ = 920913676073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 920913692397 and 920913692406.

It is not an unprimeable number, because it can be changed into a prime (920913692417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4435044 + ... + 4638042.

It is an arithmetic number, because the mean of its divisors is an integer number (22508640000).

Almost surely, 2^920913692457 is an apocalyptic number.

It is an amenable number.

920913692457 is a deficient number, since it is larger than the sum of its proper divisors (519639267543).

920913692457 is a wasteful number, since it uses less digits than its factorization.

920913692457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203218.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 920913692457 in words is "nine hundred twenty billion, nine hundred thirteen million, six hundred ninety-two thousand, four hundred fifty-seven".