54398201988 has 36 divisors (see below), whose sum is σ = 137443982928. Its totient is φ = 16737907680.

The previous prime is 54398201987. The next prime is 54398201993. The reversal of 54398201988 is 88910289345.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (54398201981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13409758 + ... + 13413813.

Almost surely, 2^54398201988 is an apocalyptic number.

It is an amenable number.

54398201988 is an abundant number, since it is smaller than the sum of its proper divisors (83045780940).

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

54398201988 is a wasteful number, since it uses less digits than its factorization.

54398201988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26823604 (or 26823589 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 54398201988 in words is "fifty-four billion, three hundred ninety-eight million, two hundred one thousand, nine hundred eighty-eight".