54151292778 has 32 divisors (see below), whose sum is σ = 118708250112. Its totient is φ = 16331708400.

The previous prime is 54151292773. The next prime is 54151292791. The reversal of 54151292778 is 87729215145.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 54151292778.

It is not an unprimeable number, because it can be changed into a prime (54151292773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930326 + ... + 1958177.

It is an arithmetic number, because the mean of its divisors is an integer number (3709632816).

Almost surely, 2^54151292778 is an apocalyptic number.

54151292778 is an abundant number, since it is smaller than the sum of its proper divisors (64556957334).

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

54151292778 is a wasteful number, since it uses less digits than its factorization.

54151292778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888730.

The product of its digits is 1411200, while the sum is 51.

The spelling of 54151292778 in words is "fifty-four billion, one hundred fifty-one million, two hundred ninety-two thousand, seven hundred seventy-eight".