10077690887 has 4 divisors (see below), whose sum is σ = 10993844616. Its totient is φ = 9161537160.

The previous prime is 10077690863. The next prime is 10077690901. The reversal of 10077690887 is 78809677001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10077690887 - 2²⁰ = 10076642311 is a prime.

It is a super-2 number, since 2×10077690887² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10077690587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458076848 + ... + 458076869.

It is an arithmetic number, because the mean of its divisors is an integer number (2748461154).

Almost surely, 2^10077690887 is an apocalyptic number.

10077690887 is a deficient number, since it is larger than the sum of its proper divisors (916153729).

10077690887 is an equidigital number, since it uses as much as digits as its factorization.

10077690887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916153728.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The spelling of 10077690887 in words is "ten billion, seventy-seven million, six hundred ninety thousand, eight hundred eighty-seven".