70777048770 has 384 divisors, whose sum is σ = 219878530560. Its totient is φ = 15656509440.

The previous prime is 70777048717. The next prime is 70777048847. The reversal of 70777048770 is 7784077707.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 24737140 + ... + 24740000.

It is an arithmetic number, because the mean of its divisors is an integer number (572600340).

Almost surely, 2^70777048770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70777048770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109939265280).

70777048770 is an abundant number, since it is smaller than the sum of its proper divisors (149101481790).

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

70777048770 is a wasteful number, since it uses less digits than its factorization.

70777048770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 3764768, while the sum is 54.

The spelling of 70777048770 in words is "seventy billion, seven hundred seventy-seven million, forty-eight thousand, seven hundred seventy".