75521377245 has 32 divisors (see below), whose sum is σ = 122797613952. Its totient is φ = 39625166592.

The previous prime is 75521377241. The next prime is 75521377247. The reversal of 75521377245 is 54277312557.

It is not a de Polignac number, because 75521377245 - 2² = 75521377241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75521377194 and 75521377203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75521377241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728259 + ... + 825471.

It is an arithmetic number, because the mean of its divisors is an integer number (3837425436).

Almost surely, 2^75521377245 is an apocalyptic number.

It is an amenable number.

75521377245 is a deficient number, since it is larger than the sum of its proper divisors (47276236707).

75521377245 is a wasteful number, since it uses less digits than its factorization.

75521377245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98061.

The product of its digits is 2058000, while the sum is 48.

The spelling of 75521377245 in words is "seventy-five billion, five hundred twenty-one million, three hundred seventy-seven thousand, two hundred forty-five".