88897786769 has 4 divisors (see below), whose sum is σ = 96979403760. Its totient is φ = 80816169780.

The previous prime is 88897786763. The next prime is 88897786799. The reversal of 88897786769 is 96768779888.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88897786769 - 2⁴ = 88897786753 is a prime.

It is a super-2 number, since 2×88897786769² (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 (88897786763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4040808479 + ... + 4040808500.

It is an arithmetic number, because the mean of its divisors is an integer number (24244850940).

Almost surely, 2^88897786769 is an apocalyptic number.

It is an amenable number.

88897786769 is a deficient number, since it is larger than the sum of its proper divisors (8081616991).

88897786769 is a wasteful number, since it uses less digits than its factorization.

88897786769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8081616990.

The product of its digits is 4096770048, while the sum is 83.

The spelling of 88897786769 in words is "eighty-eight billion, eight hundred ninety-seven million, seven hundred eighty-six thousand, seven hundred sixty-nine".