74626947761 has 8 divisors (see below), whose sum is σ = 74914779648. Its totient is φ = 74339208000.

The previous prime is 74626947749. The next prime is 74626947779. The reversal of 74626947761 is 16774962647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74626947761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74626947761.

It is not an unprimeable number, because it can be changed into a prime (74626941761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910456 + ... + 1949126.

It is an arithmetic number, because the mean of its divisors is an integer number (9364347456).

Almost surely, 2^74626947761 is an apocalyptic number.

It is an amenable number.

74626947761 is a deficient number, since it is larger than the sum of its proper divisors (287831887).

74626947761 is a wasteful number, since it uses less digits than its factorization.

74626947761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46063.

The product of its digits is 21337344, while the sum is 59.

The spelling of 74626947761 in words is "seventy-four billion, six hundred twenty-six million, nine hundred forty-seven thousand, seven hundred sixty-one".