54697879645 has 16 divisors (see below), whose sum is σ = 66965190912. Its totient is φ = 42875352000.

The previous prime is 54697879609. The next prime is 54697879651.

It is a happy number.

54697879645 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-54697879645 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61594 + ... + 336436.

It is an arithmetic number, because the mean of its divisors is an integer number (4185324432).

Almost surely, 2^54697879645 is an apocalyptic number.

It is an amenable number.

54697879645 is a deficient number, since it is larger than the sum of its proper divisors (12267311267).

54697879645 is a wasteful number, since it uses less digits than its factorization.

54697879645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275652.

The product of its digits is 457228800, while the sum is 70.

The spelling of 54697879645 in words is "fifty-four billion, six hundred ninety-seven million, eight hundred seventy-nine thousand, six hundred forty-five".