70298641920 has 320 divisors, whose sum is σ = 243678403584. Its totient is φ = 17185996800.

The previous prime is 70298641879. The next prime is 70298641969. The reversal of 70298641920 is 2914689207.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 70298641920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15073509 + ... + 15078171.

Almost surely, 2^70298641920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70298641920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121839201792).

70298641920 is an abundant number, since it is smaller than the sum of its proper divisors (173379761664).

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

70298641920 is a wasteful number, since it uses less digits than its factorization.

70298641920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 70298641920 in words is "seventy billion, two hundred ninety-eight million, six hundred forty-one thousand, nine hundred twenty".