99373464840 has 768 divisors, whose sum is σ = 363073536000. Its totient is φ = 21543874560.

The previous prime is 99373464811. The next prime is 99373464847. The reversal of 99373464840 is 4846437399.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (99373464847) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1257891921 + ... + 1257891999.

It is an arithmetic number, because the mean of its divisors is an integer number (472752000).

Almost surely, 2^99373464840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99373464840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181536768000).

99373464840 is an abundant number, since it is smaller than the sum of its proper divisors (263700071160).

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

99373464840 is a wasteful number, since it uses less digits than its factorization.

99373464840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 99373464840 in words is "ninety-nine billion, three hundred seventy-three million, four hundred sixty-four thousand, eight hundred forty".