74390641470 has 96 divisors (see below), whose sum is σ = 196806205440. Its totient is φ = 19490143680.

The previous prime is 74390641463. The next prime is 74390641483. The reversal of 74390641470 is 7414609347.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13755507 + ... + 13760913.

It is an arithmetic number, because the mean of its divisors is an integer number (2050064640).

Almost surely, 2^74390641470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74390641470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98403102720).

74390641470 is an abundant number, since it is smaller than the sum of its proper divisors (122415563970).

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

74390641470 is a wasteful number, since it uses less digits than its factorization.

74390641470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8070 (or 8067 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 74390641470 in words is "seventy-four billion, three hundred ninety million, six hundred forty-one thousand, four hundred seventy".