77002132507 has 2 divisors, whose sum is σ = 77002132508. Its totient is φ = 77002132506.

The previous prime is 77002132433. The next prime is 77002132511. The reversal of 77002132507 is 70523120077.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70523120077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77002132507 - 2¹¹ = 77002130459 is a prime.

It is a super-2 number, since 2×77002132507² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77002132517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38501066253 + 38501066254.

It is an arithmetic number, because the mean of its divisors is an integer number (38501066254).

Almost surely, 2^77002132507 is an apocalyptic number.

77002132507 is a deficient number, since it is larger than the sum of its proper divisors (1).

77002132507 is an equidigital number, since it uses as much as digits as its factorization.

77002132507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580, while the sum is 34.

The spelling of 77002132507 in words is "seventy-seven billion, two million, one hundred thirty-two thousand, five hundred seven".