878776405043044 has 12 divisors (see below), whose sum is σ = 1579422457712764. Its totient is φ = 427512845696544.

The previous prime is 878776405043027. The next prime is 878776405043051. The reversal of 878776405043044 is 440340504677878.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 471096693476644 + 407679711566400 = 21704762^2 + 20191080^2 .

It is a super-2 number, since 2×878776405043044² (a number of 31 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, 2968839206079 + ... + 2968839206374.

Almost surely, 2^{878776405043044} is an apocalyptic number.

It is an amenable number.

878776405043044 is a deficient number, since it is larger than the sum of its proper divisors (700646052669720).

878776405043044 is a wasteful number, since it uses less digits than its factorization.

878776405043044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937678412494 (or 5937678412492 counting only the distinct ones).

The product of its (nonzero) digits is 505774080, while the sum is 67.

The spelling of 878776405043044 in words is "eight hundred seventy-eight trillion, seven hundred seventy-six billion, four hundred five million, forty-three thousand, forty-four".