74679530450 has 54 divisors (see below), whose sum is σ = 161611390863. Its totient is φ = 25599772800.

The previous prime is 74679530449. The next prime is 74679530479. The reversal of 74679530450 is 5403597647.

It can be written as a sum of positive squares in 5 ways, for example, as 12267999121 + 62411531329 = 110761^2 + 249823^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=193235.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13523690 + ... + 13529210.

Almost surely, 2^74679530450 is an apocalyptic number.

74679530450 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74679530450 is an abundant number, since it is smaller than the sum of its proper divisors (86931860413).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74679530450 is an frugal number, since it uses more digits than its factorization.

74679530450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11068 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

Multiplying 74679530450 by its sum of digits (50), we get a square (3733976522500 = 1932350²).

74679530450 divided by its sum of digits (50) gives a square (1493590609 = 38647²).

The spelling of 74679530450 in words is "seventy-four billion, six hundred seventy-nine million, five hundred thirty thousand, four hundred fifty".