74562452421 has 32 divisors (see below), whose sum is σ = 108930096000. Its totient is φ = 45156249600.

The previous prime is 74562452389. The next prime is 74562452449. The reversal of 74562452421 is 12425426547.

It is not a de Polignac number, because 74562452421 - 2⁵ = 74562452389 is a prime.

It is a super-2 number, since 2×74562452421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74562452491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5982246 + ... + 5994696.

It is an arithmetic number, because the mean of its divisors is an integer number (3404065500).

Almost surely, 2^74562452421 is an apocalyptic number.

It is an amenable number.

74562452421 is a deficient number, since it is larger than the sum of its proper divisors (34367643579).

74562452421 is a wasteful number, since it uses less digits than its factorization.

74562452421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16549.

The product of its digits is 537600, while the sum is 42.

Adding to 74562452421 its reverse (12425426547), we get a palindrome (86987878968).

The spelling of 74562452421 in words is "seventy-four billion, five hundred sixty-two million, four hundred fifty-two thousand, four hundred twenty-one".