74661619375 has 20 divisors (see below), whose sum is σ = 106625331472. Its totient is φ = 51196536000.

The previous prime is 74661619327. The next prime is 74661619379. The reversal of 74661619375 is 57391616647.

It is not a de Polignac number, because 74661619375 - 2²³ = 74653230767 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74661619379) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8528382 + ... + 8537131.

Almost surely, 2^74661619375 is an apocalyptic number.

74661619375 is a deficient number, since it is larger than the sum of its proper divisors (31963712097).

74661619375 is an equidigital number, since it uses as much as digits as its factorization.

74661619375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17065540 (or 17065525 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 55.

The spelling of 74661619375 in words is "seventy-four billion, six hundred sixty-one million, six hundred nineteen thousand, three hundred seventy-five".