54781591377 has 8 divisors (see below), whose sum is σ = 73054444320. Its totient is φ = 36514899680.

The previous prime is 54781591373. The next prime is 54781591439. The reversal of 54781591377 is 77319518745.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54781591377 - 2² = 54781591373 is a prime.

It is a super-2 number, since 2×54781591377² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54781591373) 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 7 ways as a sum of consecutive naturals, for example, 1519524 + ... + 1555157.

It is an arithmetic number, because the mean of its divisors is an integer number (9131805540).

Almost surely, 2^54781591377 is an apocalyptic number.

It is an amenable number.

54781591377 is a deficient number, since it is larger than the sum of its proper divisors (18272852943).

54781591377 is a wasteful number, since it uses less digits than its factorization.

54781591377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080623.

The product of its digits is 7408800, while the sum is 57.

The spelling of 54781591377 in words is "fifty-four billion, seven hundred eighty-one million, five hundred ninety-one thousand, three hundred seventy-seven".