653798042457 has 24 divisors (see below), whose sum is σ = 1018297065600. Its totient is φ = 372035686176.

The previous prime is 653798042449. The next prime is 653798042459. The reversal of 653798042457 is 754240897356.

653798042457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 653798042457 - 2³ = 653798042449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 653798042457.

It is not an unprimeable number, because it can be changed into a prime (653798042459) 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, 9269482 + ... + 9339747.

It is an arithmetic number, because the mean of its divisors is an integer number (42429044400).

Almost surely, 2^653798042457 is an apocalyptic number.

It is an amenable number.

653798042457 is a deficient number, since it is larger than the sum of its proper divisors (364499023143).

653798042457 is a wasteful number, since it uses less digits than its factorization.

653798042457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609485 (or 18609478 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 653798042457 in words is "six hundred fifty-three billion, seven hundred ninety-eight million, forty-two thousand, four hundred fifty-seven".