70045756620 has 96 divisors (see below), whose sum is σ = 224467117056. Its totient is φ = 15987552000.

The previous prime is 70045756607. The next prime is 70045756621. The reversal of 70045756620 is 2665754007.

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 (70045756621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175465 + ... + 413375.

It is an arithmetic number, because the mean of its divisors is an integer number (2338199136).

Almost surely, 2^70045756620 is an apocalyptic number.

70045756620 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 70045756620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112233558528).

70045756620 is an abundant number, since it is smaller than the sum of its proper divisors (154421360436).

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

70045756620 is a wasteful number, since it uses less digits than its factorization.

70045756620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238631 (or 238629 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 70045756620 in words is "seventy billion, forty-five million, seven hundred fifty-six thousand, six hundred twenty".