54136979464 has 32 divisors (see below), whose sum is σ = 102041896320. Its totient is φ = 26926151616.

The previous prime is 54136979461. The next prime is 54136979467. The reversal of 54136979464 is 46497963145.

It is an interprime number because it is at equal distance from previous prime (54136979461) and next prime (54136979467).

It is a junction number, because it is equal to n+sod(n) for n = 54136979399 and 54136979408.

It is not an unprimeable number, because it can be changed into a prime (54136979461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261057 + ... + 1303279.

It is an arithmetic number, because the mean of its divisors is an integer number (3188809260).

Almost surely, 2^54136979464 is an apocalyptic number.

It is an amenable number.

54136979464 is a deficient number, since it is larger than the sum of its proper divisors (47904916856).

54136979464 is a wasteful number, since it uses less digits than its factorization.

54136979464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43069 (or 43065 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 58.

The spelling of 54136979464 in words is "fifty-four billion, one hundred thirty-six million, nine hundred seventy-nine thousand, four hundred sixty-four".