54899357646 has 48 divisors (see below), whose sum is σ = 128700126720. Its totient is φ = 15565782960.

The previous prime is 54899357641. The next prime is 54899357647. The reversal of 54899357646 is 64675399845.

54899357646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×54899357646² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54899357641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674206 + ... + 751233.

It is an arithmetic number, because the mean of its divisors is an integer number (2681252640).

Almost surely, 2^54899357646 is an apocalyptic number.

54899357646 is an abundant number, since it is smaller than the sum of its proper divisors (73800769074).

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

54899357646 is a wasteful number, since it uses less digits than its factorization.

54899357646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425589 (or 1425582 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 66.

The spelling of 54899357646 in words is "fifty-four billion, eight hundred ninety-nine million, three hundred fifty-seven thousand, six hundred forty-six".