76730252450121 has 6 divisors (see below), whose sum is σ = 110832586872410. Its totient is φ = 51153501633408.

The previous prime is 76730252450087. The next prime is 76730252450123. The reversal of 76730252450121 is 12105425203767.

76730252450121 is a `hidden beast` number, since 7 + 6 + 73 + 0 + 2 + 5 + 2 + 450 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62652290702400 + 14077961747721 = 7915320^2 + 3752061^2 .

It is not a de Polignac number, because 76730252450121 - 2⁶ = 76730252450057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76730252450123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4262791802776 + ... + 4262791802793.

Almost surely, 2^{76730252450121} is an apocalyptic number.

It is an amenable number.

76730252450121 is a deficient number, since it is larger than the sum of its proper divisors (34102334422289).

76730252450121 is a wasteful number, since it uses less digits than its factorization.

76730252450121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8525583605575 (or 8525583605572 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

Adding to 76730252450121 its reverse (12105425203767), we get a palindrome (88835677653888).

The spelling of 76730252450121 in words is "seventy-six trillion, seven hundred thirty billion, two hundred fifty-two million, four hundred fifty thousand, one hundred twenty-one".