77801100010 has 8 divisors (see below), whose sum is σ = 140041980036. Its totient is φ = 31120440000.

The previous prime is 77801099953. The next prime is 77801100031. The reversal of 77801100010 is 1000110877.

It can be written as a sum of positive squares in 2 ways, for example, as 77772381129 + 28718881 = 278877^2 + 5359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×77801100010² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3890054991 + ... + 3890055010.

Almost surely, 2^77801100010 is an apocalyptic number.

77801100010 is a deficient number, since it is larger than the sum of its proper divisors (62240880026).

77801100010 is a wasteful number, since it uses less digits than its factorization.

77801100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780110008.

The product of its (nonzero) digits is 392, while the sum is 25.

Adding to 77801100010 its reverse (1000110877), we get a palindrome (78801210887).

The spelling of 77801100010 in words is "seventy-seven billion, eight hundred one million, one hundred thousand, ten".