70836778422 has 32 divisors (see below), whose sum is σ = 157629905760. Its totient is φ = 23580033120.

The previous prime is 70836778421. The next prime is 70836778427. The reversal of 70836778422 is 22487763807.

70836778422 is a `hidden beast` number, since 70 + 83 + 6 + 7 + 78 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70836778421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855229 + ... + 934392.

It is an arithmetic number, because the mean of its divisors is an integer number (4925934555).

Almost surely, 2^70836778422 is an apocalyptic number.

70836778422 is an abundant number, since it is smaller than the sum of its proper divisors (86793127338).

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

70836778422 is a wasteful number, since it uses less digits than its factorization.

70836778422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790365 (or 1790359 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 70836778422 in words is "seventy billion, eight hundred thirty-six million, seven hundred seventy-eight thousand, four hundred twenty-two".