70496531868 has 144 divisors (see below), whose sum is σ = 200661058080. Its totient is φ = 19180578816.

The previous prime is 70496531867. The next prime is 70496531891. The reversal of 70496531868 is 86813569407.

It is a super-2 number, since 2×70496531868² (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 (70496531867) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1216480 + ... + 1273112.

It is an arithmetic number, because the mean of its divisors is an integer number (1393479570).

Almost surely, 2^70496531868 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 70496531868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100330529040).

70496531868 is an abundant number, since it is smaller than the sum of its proper divisors (130164526212).

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

70496531868 is a wasteful number, since it uses less digits than its factorization.

70496531868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56756 (or 56747 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 70496531868 in words is "seventy billion, four hundred ninety-six million, five hundred thirty-one thousand, eight hundred sixty-eight".