88778149507 has 2 divisors, whose sum is σ = 88778149508. Its totient is φ = 88778149506.

The previous prime is 88778149487. The next prime is 88778149517. The reversal of 88778149507 is 70594187788.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88778149507 - 2⁷ = 88778149379 is a prime.

It is not a weakly prime, because it can be changed into another prime (88778149517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44389074753 + 44389074754.

It is an arithmetic number, because the mean of its divisors is an integer number (44389074754).

Almost surely, 2^88778149507 is an apocalyptic number.

88778149507 is a deficient number, since it is larger than the sum of its proper divisors (1).

88778149507 is an equidigital number, since it uses as much as digits as its factorization.

88778149507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 88778149507 in words is "eighty-eight billion, seven hundred seventy-eight million, one hundred forty-nine thousand, five hundred seven".