74641587020 has 288 divisors, whose sum is σ = 223225497600. Its totient is φ = 20343882240.

The previous prime is 74641586969. The next prime is 74641587029. The reversal of 74641587020 is 2078514647.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (74641587029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4175261 + ... + 4193099.

Almost surely, 2^74641587020 is an apocalyptic number.

74641587020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74641587020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111612748800).

74641587020 is an abundant number, since it is smaller than the sum of its proper divisors (148583910580).

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

74641587020 is a wasteful number, since it uses less digits than its factorization.

74641587020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17909 (or 17896 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 74641587020 in words is "seventy-four billion, six hundred forty-one million, five hundred eighty-seven thousand, twenty".