74373156253 has 16 divisors (see below), whose sum is σ = 82303385472. Its totient is φ = 66638376000.

The previous prime is 74373156239. The next prime is 74373156257. The reversal of 74373156253 is 35265137347.

It is a cyclic number.

It is not a de Polignac number, because 74373156253 - 2²¹ = 74371059101 is a prime.

It is a super-3 number, since 3×74373156253³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74373156257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2752075 + ... + 2778967.

It is an arithmetic number, because the mean of its divisors is an integer number (5143961592).

Almost surely, 2^74373156253 is an apocalyptic number.

It is an amenable number.

74373156253 is a deficient number, since it is larger than the sum of its proper divisors (7930229219).

74373156253 is a wasteful number, since it uses less digits than its factorization.

74373156253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30516.

The product of its digits is 1587600, while the sum is 46.

The spelling of 74373156253 in words is "seventy-four billion, three hundred seventy-three million, one hundred fifty-six thousand, two hundred fifty-three".