74287851412551 has 64 divisors (see below), whose sum is σ = 120039007795200. Its totient is φ = 39893302665216.

The previous prime is 74287851412547. The next prime is 74287851412553. The reversal of 74287851412551 is 15521415878247.

It is not a de Polignac number, because 74287851412551 - 2² = 74287851412547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74287851412553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650056645 + ... + 650170913.

It is an arithmetic number, because the mean of its divisors is an integer number (1875609496800).

Almost surely, 2^{74287851412551} is an apocalyptic number.

74287851412551 is a deficient number, since it is larger than the sum of its proper divisors (45751156382649).

74287851412551 is a wasteful number, since it uses less digits than its factorization.

74287851412551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117008.

The product of its digits is 25088000, while the sum is 60.

The spelling of 74287851412551 in words is "seventy-four trillion, two hundred eighty-seven billion, eight hundred fifty-one million, four hundred twelve thousand, five hundred fifty-one".