76901578729 has 2 divisors, whose sum is σ = 76901578730. Its totient is φ = 76901578728.

The previous prime is 76901578693. The next prime is 76901578753. The reversal of 76901578729 is 92787510967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39555243225 + 37346335504 = 198885^2 + 193252^2 .

It is a cyclic number.

It is not a de Polignac number, because 76901578729 - 2¹⁷ = 76901447657 is a prime.

It is a super-2 number, since 2×76901578729² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76901578799) 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 as a sum of consecutive naturals, namely, 38450789364 + 38450789365.

It is an arithmetic number, because the mean of its divisors is an integer number (38450789365).

Almost surely, 2^76901578729 is an apocalyptic number.

It is an amenable number.

76901578729 is a deficient number, since it is larger than the sum of its proper divisors (1).

76901578729 is an equidigital number, since it uses as much as digits as its factorization.

76901578729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 61.

The spelling of 76901578729 in words is "seventy-six billion, nine hundred one million, five hundred seventy-eight thousand, seven hundred twenty-nine".