70537772240 has 160 divisors (see below), whose sum is σ = 187853976576. Its totient is φ = 24401387520.

The previous prime is 70537772237. The next prime is 70537772243. The reversal of 70537772240 is 4227773507.

It is an interprime number because it is at equal distance from previous prime (70537772237) and next prime (70537772243).

It is a super-2 number, since 2×70537772240² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70537772191 and 70537772200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70537772243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3933695 + ... + 3951585.

Almost surely, 2^70537772240 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 70537772240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93926988288).

70537772240 is an abundant number, since it is smaller than the sum of its proper divisors (117316204336).

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

70537772240 is a wasteful number, since it uses less digits than its factorization.

70537772240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18157 (or 18151 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 44.

The spelling of 70537772240 in words is "seventy billion, five hundred thirty-seven million, seven hundred seventy-two thousand, two hundred forty".