74770536421 has 16 divisors (see below), whose sum is σ = 86342731776. Its totient is φ = 63424399536.

The previous prime is 74770536383. The next prime is 74770536499. The reversal of 74770536421 is 12463507747.

It is a cyclic number.

It is not a de Polignac number, because 74770536421 - 2¹⁵ = 74770503653 is a prime.

It is a super-3 number, since 3×74770536421³ (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 (74770536221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124480 + ... + 406246.

It is an arithmetic number, because the mean of its divisors is an integer number (5396420736).

Almost surely, 2^74770536421 is an apocalyptic number.

It is an amenable number.

74770536421 is a deficient number, since it is larger than the sum of its proper divisors (11572195355).

74770536421 is a wasteful number, since it uses less digits than its factorization.

74770536421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282168.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 74770536421 in words is "seventy-four billion, seven hundred seventy million, five hundred thirty-six thousand, four hundred twenty-one".