54439293657 has 192 divisors, whose sum is σ = 93510205440. Its totient is φ = 28021593600.

The previous prime is 54439293631. The next prime is 54439293683. The reversal of 54439293657 is 75639293445.

It is an interprime number because it is at equal distance from previous prime (54439293631) and next prime (54439293683).

It is not a de Polignac number, because 54439293657 - 2¹¹ = 54439291609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54439293597 and 54439293606.

It is not an unprimeable number, because it can be changed into a prime (54439293157) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 689104944 + ... + 689105022.

It is an arithmetic number, because the mean of its divisors is an integer number (487032320).

Almost surely, 2^54439293657 is an apocalyptic number.

It is an amenable number.

54439293657 is a deficient number, since it is larger than the sum of its proper divisors (39070911783).

54439293657 is a wasteful number, since it uses less digits than its factorization.

54439293657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 285 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 57.

The spelling of 54439293657 in words is "fifty-four billion, four hundred thirty-nine million, two hundred ninety-three thousand, six hundred fifty-seven".