74670481081 has 27 divisors (see below), whose sum is σ = 87945127461. Its totient is φ = 63214644024.

The previous prime is 74670481069. The next prime is 74670481087. The reversal of 74670481081 is 18018407647.

The square root of 74670481081 is 273259.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 74670481081 - 2⁷ = 74670480953 is a prime.

It is a super-2 number, since 2×74670481081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74670481087) 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 26 ways as a sum of consecutive naturals, for example, 197019550 + ... + 197019928.

It is an arithmetic number, because the mean of its divisors is an integer number (3257226943).

Almost surely, 2^74670481081 is an apocalyptic number.

74670481081 is the 273259-th square number.

74670481081 is the 136630-th centered octagonal number.

It is an amenable number.

74670481081 is a deficient number, since it is larger than the sum of its proper divisors (13274646380).

74670481081 is an frugal number, since it uses more digits than its factorization.

74670481081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 74670481081 in words is "seventy-four billion, six hundred seventy million, four hundred eighty-one thousand, eighty-one".