54667980991 has 16 divisors (see below), whose sum is σ = 60452421120. Its totient is φ = 49125754080.

The previous prime is 54667980937. The next prime is 54667981007. The reversal of 54667980991 is 19908976645.

It is not a de Polignac number, because 54667980991 - 2²⁵ = 54634426559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54667980901) 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, 266995 + ... + 424996.

It is an arithmetic number, because the mean of its divisors is an integer number (3778276320).

Almost surely, 2^54667980991 is an apocalyptic number.

54667980991 is a deficient number, since it is larger than the sum of its proper divisors (5784440129).

54667980991 is a wasteful number, since it uses less digits than its factorization.

54667980991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692166.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 54667980991 in words is "fifty-four billion, six hundred sixty-seven million, nine hundred eighty thousand, nine hundred ninety-one".