75620445451 has 4 divisors (see below), whose sum is σ = 77664241312. Its totient is φ = 73576649592.

The previous prime is 75620445403. The next prime is 75620445539. The reversal of 75620445451 is 15454402657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75620445451 - 2⁷ = 75620445323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75620445398 and 75620445407.

It is not an unprimeable number, because it can be changed into a prime (75620445401) 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, 1021897875 + ... + 1021897948.

It is an arithmetic number, because the mean of its divisors is an integer number (19416060328).

Almost surely, 2^75620445451 is an apocalyptic number.

75620445451 is a deficient number, since it is larger than the sum of its proper divisors (2043795861).

75620445451 is a wasteful number, since it uses less digits than its factorization.

75620445451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043795860.

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 75620445451 in words is "seventy-five billion, six hundred twenty million, four hundred forty-five thousand, four hundred fifty-one".