70495994520 has 640 divisors, whose sum is σ = 284777856000. Its totient is φ = 15292468224.

The previous prime is 70495994507. The next prime is 70495994531. The reversal of 70495994520 is 2549959407.

70495994520 is a `hidden beast` number, since 7 + 0 + 4 + 9 + 599 + 45 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 77723907 + ... + 77724813.

It is an arithmetic number, because the mean of its divisors is an integer number (444965400).

Almost surely, 2^70495994520 is an apocalyptic number.

70495994520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70495994520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142388928000).

70495994520 is an abundant number, since it is smaller than the sum of its proper divisors (214281861480).

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

70495994520 is a wasteful number, since it uses less digits than its factorization.

70495994520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 70495994520 in words is "seventy billion, four hundred ninety-five million, nine hundred ninety-four thousand, five hundred twenty".