5457951378 has 24 divisors (see below), whose sum is σ = 12900612816. Its totient is φ = 1653924600.

The previous prime is 5457951353. The next prime is 5457951391. The reversal of 5457951378 is 8731597545.

5457951378 is a `hidden beast` number, since 5 + 4 + 57 + 9 + 513 + 78 = 666.

It is a super-2 number, since 2×5457951378² = 59578466489224197768, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13782508 + ... + 13782903.

It is an arithmetic number, because the mean of its divisors is an integer number (537525534).

Almost surely, 2^5457951378 is an apocalyptic number.

5457951378 is an abundant number, since it is smaller than the sum of its proper divisors (7442661438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5457951378 is a wasteful number, since it uses less digits than its factorization.

5457951378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27565430 (or 27565427 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The square root of 5457951378 is about 73877.9492000150. The cubic root of 5457951378 is about 1760.6642828633.

The spelling of 5457951378 in words is "five billion, four hundred fifty-seven million, nine hundred fifty-one thousand, three hundred seventy-eight".