70497697240 has 64 divisors (see below), whose sum is σ = 161682262560. Its totient is φ = 27658920960.

The previous prime is 70497697229. The next prime is 70497697241. The reversal of 70497697240 is 4279679407.

It is a super-2 number, since 2×70497697240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70497697241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461827 + ... + 595213.

Almost surely, 2^70497697240 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 70497697240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80841131280).

70497697240 is an abundant number, since it is smaller than the sum of its proper divisors (91184565320).

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

70497697240 is a wasteful number, since it uses less digits than its factorization.

70497697240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133652 (or 133648 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 70497697240 in words is "seventy billion, four hundred ninety-seven million, six hundred ninety-seven thousand, two hundred forty".