74271431537 has 8 divisors (see below), whose sum is σ = 75661958400. Its totient is φ = 72892164384.

The previous prime is 74271431527. The next prime is 74271431569. The reversal of 74271431537 is 73513417247.

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 74271431537 - 2⁶ = 74271431473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74271431527) 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, 2801612 + ... + 2827997.

It is an arithmetic number, because the mean of its divisors is an integer number (9457744800).

Almost surely, 2^74271431537 is an apocalyptic number.

It is an amenable number.

74271431537 is a deficient number, since it is larger than the sum of its proper divisors (1390526863).

74271431537 is a wasteful number, since it uses less digits than its factorization.

74271431537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629855.

The product of its digits is 493920, while the sum is 44.

The spelling of 74271431537 in words is "seventy-four billion, two hundred seventy-one million, four hundred thirty-one thousand, five hundred thirty-seven".