10407778881 has 4 divisors (see below), whose sum is σ = 13877038512. Its totient is φ = 6938519252.

The previous prime is 10407778859. The next prime is 10407778919. The reversal of 10407778881 is 18887770401.

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 10407778881 - 2⁷ = 10407778753 is a prime.

It is a super-2 number, since 2×10407778881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10407778481) 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, 1734629811 + ... + 1734629816.

It is an arithmetic number, because the mean of its divisors is an integer number (3469259628).

Almost surely, 2^10407778881 is an apocalyptic number.

It is an amenable number.

10407778881 is a deficient number, since it is larger than the sum of its proper divisors (3469259631).

10407778881 is an equidigital number, since it uses as much as digits as its factorization.

10407778881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469259630.

The product of its (nonzero) digits is 702464, while the sum is 51.

The spelling of 10407778881 in words is "ten billion, four hundred seven million, seven hundred seventy-eight thousand, eight hundred eighty-one".