776881896194040 has 256 divisors, whose sum is σ = 2961018841374720. Its totient is φ = 158626009221120.

The previous prime is 776881896193993. The next prime is 776881896194081. The reversal of 776881896194040 is 40491698188677.

It is a hoax number, since the sum of its digits (78) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1147129719 + ... + 1147806758.

It is an arithmetic number, because the mean of its divisors is an integer number (11566479849120).

Almost surely, 2^{776881896194040} is an apocalyptic number.

776881896194040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

776881896194040 is an abundant number, since it is smaller than the sum of its proper divisors (2184136945180680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

776881896194040 is a wasteful number, since it uses less digits than its factorization.

776881896194040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294936542 (or 2294936538 counting only the distinct ones).

The product of its (nonzero) digits is 1170505728, while the sum is 78.

The spelling of 776881896194040 in words is "seven hundred seventy-six trillion, eight hundred eighty-one billion, eight hundred ninety-six million, one hundred ninety-four thousand, forty".