507778811904 has 576 divisors, whose sum is σ = 1769950465920. Its totient is φ = 128074383360.

The previous prime is 507778811899. The next prime is 507778811921. The reversal of 507778811904 is 409118877705.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90012924 + ... + 90018564.

It is an arithmetic number, because the mean of its divisors is an integer number (3072830670).

Almost surely, 2^507778811904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 507778811904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (884975232960).

507778811904 is an abundant number, since it is smaller than the sum of its proper divisors (1262171654016).

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

507778811904 is a wasteful number, since it uses less digits than its factorization.

507778811904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716 (or 5689 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 57.

The spelling of 507778811904 in words is "five hundred seven billion, seven hundred seventy-eight million, eight hundred eleven thousand, nine hundred four".