73415252251 has 8 divisors (see below), whose sum is σ = 81186481584. Its totient is φ = 65826875520.

The previous prime is 73415252249. The next prime is 73415252297. The reversal of 73415252251 is 15225251437.

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 73415252251 - 2¹ = 73415252249 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 73415252251.

It is not an unprimeable number, because it can be changed into a prime (73415252951) 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, 45712306 + ... + 45713911.

It is an arithmetic number, because the mean of its divisors is an integer number (10148310198).

Almost surely, 2^73415252251 is an apocalyptic number.

73415252251 is a deficient number, since it is larger than the sum of its proper divisors (7771229333).

73415252251 is a wasteful number, since it uses less digits than its factorization.

73415252251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91426301.

The product of its digits is 84000, while the sum is 37.

The spelling of 73415252251 in words is "seventy-three billion, four hundred fifteen million, two hundred fifty-two thousand, two hundred fifty-one".