74742647501 has 8 divisors (see below), whose sum is σ = 75864192384. Its totient is φ = 73621278720.

The previous prime is 74742647479. The next prime is 74742647519. The reversal of 74742647501 is 10574624747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74742647501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74742647531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992876 + ... + 1065498.

It is an arithmetic number, because the mean of its divisors is an integer number (9483024048).

Almost surely, 2^74742647501 is an apocalyptic number.

It is an amenable number.

74742647501 is a deficient number, since it is larger than the sum of its proper divisors (1121544883).

74742647501 is a wasteful number, since it uses less digits than its factorization.

74742647501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88051.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 74742647501 in words is "seventy-four billion, seven hundred forty-two million, six hundred forty-seven thousand, five hundred one".