54697807812 has 12 divisors (see below), whose sum is σ = 127628218256. Its totient is φ = 18232602600.

The previous prime is 54697807771. The next prime is 54697807823. The reversal of 54697807812 is 21870879645.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279075314 + ... + 2279075337.

Almost surely, 2^54697807812 is an apocalyptic number.

It is an amenable number.

54697807812 is an abundant number, since it is smaller than the sum of its proper divisors (72930410444).

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

54697807812 is a wasteful number, since it uses less digits than its factorization.

54697807812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558150658 (or 4558150656 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 54697807812 in words is "fifty-four billion, six hundred ninety-seven million, eight hundred seven thousand, eight hundred twelve".