74371728740 has 12 divisors (see below), whose sum is σ = 156180630396. Its totient is φ = 29748691488.

The previous prime is 74371728721. The next prime is 74371728763. The reversal of 74371728740 is 4782717347.

It can be written as a sum of positive squares in 2 ways, for example, as 27494282596 + 46877446144 = 165814^2 + 216512^2 .

It is a super-2 number, since 2×74371728740² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859293199 + ... + 1859293238.

It is an arithmetic number, because the mean of its divisors is an integer number (13015052533).

Almost surely, 2^74371728740 is an apocalyptic number.

It is an amenable number.

74371728740 is an abundant number, since it is smaller than the sum of its proper divisors (81808901656).

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

74371728740 is a wasteful number, since it uses less digits than its factorization.

74371728740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718586446 (or 3718586444 counting only the distinct ones).

The product of its (nonzero) digits is 1843968, while the sum is 50.

The spelling of 74371728740 in words is "seventy-four billion, three hundred seventy-one million, seven hundred twenty-eight thousand, seven hundred forty".