75015090881 has 2 divisors, whose sum is σ = 75015090882. Its totient is φ = 75015090880.

The previous prime is 75015090877. The next prime is 75015090911. The reversal of 75015090881 is 18809051057.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41969668225 + 33045422656 = 204865^2 + 181784^2 .

It is a cyclic number.

It is not a de Polignac number, because 75015090881 - 2² = 75015090877 is a prime.

It is a super-2 number, since 2×75015090881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75015090181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37507545440 + 37507545441.

It is an arithmetic number, because the mean of its divisors is an integer number (37507545441).

Almost surely, 2^75015090881 is an apocalyptic number.

It is an amenable number.

75015090881 is a deficient number, since it is larger than the sum of its proper divisors (1).

75015090881 is an equidigital number, since it uses as much as digits as its factorization.

75015090881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 75015090881 in words is "seventy-five billion, fifteen million, ninety thousand, eight hundred eighty-one".