70683738720 has 384 divisors, whose sum is σ = 260576870400. Its totient is φ = 16098969600.

The previous prime is 70683738701. The next prime is 70683738731. The reversal of 70683738720 is 2783738607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61410145 + ... + 61411295.

It is an arithmetic number, because the mean of its divisors is an integer number (678585600).

Almost surely, 2^70683738720 is an apocalyptic number.

70683738720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70683738720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130288435200).

70683738720 is an abundant number, since it is smaller than the sum of its proper divisors (189893131680).

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

70683738720 is a wasteful number, since it uses less digits than its factorization.

70683738720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 70683738720 in words is "seventy billion, six hundred eighty-three million, seven hundred thirty-eight thousand, seven hundred twenty".