102440058641 has 4 divisors (see below), whose sum is σ = 102463947300. Its totient is φ = 102416169984.

The previous prime is 102440058631. The next prime is 102440058647. The reversal of 102440058641 is 146850044201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100701502225 + 1738556416 = 317335^2 + 41696^2 .

It is a cyclic number.

It is not a de Polignac number, because 102440058641 - 2²² = 102435864337 is a prime.

It is a super-2 number, since 2×102440058641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102440058647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11937896 + ... + 11946473.

It is an arithmetic number, because the mean of its divisors is an integer number (25615986825).

Almost surely, 2^102440058641 is an apocalyptic number.

It is an amenable number.

102440058641 is a deficient number, since it is larger than the sum of its proper divisors (23888659).

102440058641 is an equidigital number, since it uses as much as digits as its factorization.

102440058641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23888658.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 102440058641 in words is "one hundred two billion, four hundred forty million, fifty-eight thousand, six hundred forty-one".