74066400757 has 4 divisors (see below), whose sum is σ = 74101892256. Its totient is φ = 74030909260.

The previous prime is 74066400743. The next prime is 74066400763. The reversal of 74066400757 is 75700466047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74066400757 - 2¹⁵ = 74066367989 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 (74066400767) 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, 17742619 + ... + 17746792.

It is an arithmetic number, because the mean of its divisors is an integer number (18525473064).

Almost surely, 2^74066400757 is an apocalyptic number.

It is an amenable number.

74066400757 is a deficient number, since it is larger than the sum of its proper divisors (35491499).

74066400757 is a wasteful number, since it uses less digits than its factorization.

74066400757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35491498.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 74066400757 in words is "seventy-four billion, sixty-six million, four hundred thousand, seven hundred fifty-seven".