70745548720 has 320 divisors, whose sum is σ = 213157785600. Its totient is φ = 21188321280.

The previous prime is 70745548703. The next prime is 70745548733. The reversal of 70745548720 is 2784554707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42694132 + ... + 42695788.

It is an arithmetic number, because the mean of its divisors is an integer number (666118080).

Almost surely, 2^70745548720 is an apocalyptic number.

70745548720 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 70745548720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106578892800).

70745548720 is an abundant number, since it is smaller than the sum of its proper divisors (142412236880).

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

70745548720 is a wasteful number, since it uses less digits than its factorization.

70745548720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 49.

The spelling of 70745548720 in words is "seventy billion, seven hundred forty-five million, five hundred forty-eight thousand, seven hundred twenty".