70299797667840 has 3360 divisors, whose sum is σ = 295738127548416. Its totient is φ = 15892123484160.

The previous prime is 70299797667821. The next prime is 70299797667877. The reversal of 70299797667840 is 4876679799207.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 70299797667840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 553541713857 + ... + 553541713983.

Almost surely, 2^{70299797667840} 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 70299797667840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147869063774208).

70299797667840 is an abundant number, since it is smaller than the sum of its proper divisors (225438329880576).

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

70299797667840 is a wasteful number, since it uses less digits than its factorization.

70299797667840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 4032758016, while the sum is 81.

The spelling of 70299797667840 in words is "seventy trillion, two hundred ninety-nine billion, seven hundred ninety-seven million, six hundred sixty-seven thousand, eight hundred forty".