74627473717 has 4 divisors (see below), whose sum is σ = 74628020236. Its totient is φ = 74626927200.

The previous prime is 74627473699. The next prime is 74627473729. The reversal of 74627473717 is 71737472647.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 44836368516 + 29791105201 = 211746^2 + 172601^2 .

It is a cyclic number.

It is not a de Polignac number, because 74627473717 - 2¹¹ = 74627471669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74627273717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126793 + ... + 406609.

It is an arithmetic number, because the mean of its divisors is an integer number (18657005059).

Almost surely, 2^74627473717 is an apocalyptic number.

It is an amenable number.

74627473717 is a deficient number, since it is larger than the sum of its proper divisors (546519).

74627473717 is a wasteful number, since it uses less digits than its factorization.

74627473717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546518.

The product of its digits is 9680832, while the sum is 55.

The spelling of 74627473717 in words is "seventy-four billion, six hundred twenty-seven million, four hundred seventy-three thousand, seven hundred seventeen".