70629205920 has 768 divisors, whose sum is σ = 287911895040. Its totient is φ = 14145601536.

The previous prime is 70629205879. The next prime is 70629205921. The reversal of 70629205920 is 2950292607.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (70629205921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 230062407 + ... + 230062713.

It is an arithmetic number, because the mean of its divisors is an integer number (374885280).

Almost surely, 2^70629205920 is an apocalyptic number.

70629205920 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 70629205920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143955947520).

70629205920 is an abundant number, since it is smaller than the sum of its proper divisors (217282689120).

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

70629205920 is a wasteful number, since it uses less digits than its factorization.

70629205920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 70629205920 in words is "seventy billion, six hundred twenty-nine million, two hundred five thousand, nine hundred twenty".