74221477354540 has 24 divisors (see below), whose sum is σ = 156282971367600. Its totient is φ = 29608996861248.

The previous prime is 74221477354511. The next prime is 74221477354603. The reversal of 74221477354540 is 4545377412247.

It is a super-2 number, since 2×74221477354540² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4974622390 + ... + 4974637309.

It is an arithmetic number, because the mean of its divisors is an integer number (6511790473650).

Almost surely, 2^{74221477354540} is an apocalyptic number.

It is an amenable number.

74221477354540 is an abundant number, since it is smaller than the sum of its proper divisors (82061494013060).

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

74221477354540 is a wasteful number, since it uses less digits than its factorization.

74221477354540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9949260081 (or 9949260079 counting only the distinct ones).

The product of its (nonzero) digits is 26342400, while the sum is 55.

The spelling of 74221477354540 in words is "seventy-four trillion, two hundred twenty-one billion, four hundred seventy-seven million, three hundred fifty-four thousand, five hundred forty".