74007724631557 has 8 divisors (see below), whose sum is σ = 74462307945120. Its totient is φ = 73553148003600.

The previous prime is 74007724631509. The next prime is 74007724631623. The reversal of 74007724631557 is 75513642770047.

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

It is a cyclic number.

It is not a de Polignac number, because 74007724631557 - 2⁷ = 74007724631429 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 (74007724631957) 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, 21521319 + ... + 24722107.

It is an arithmetic number, because the mean of its divisors is an integer number (9307788493140).

Almost surely, 2^{74007724631557} is an apocalyptic number.

It is an amenable number.

74007724631557 is a deficient number, since it is larger than the sum of its proper divisors (454583313563).

74007724631557 is a wasteful number, since it uses less digits than its factorization.

74007724631557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342803.

The product of its (nonzero) digits is 34574400, while the sum is 58.

The spelling of 74007724631557 in words is "seventy-four trillion, seven billion, seven hundred twenty-four million, six hundred thirty-one thousand, five hundred fifty-seven".