70721677506 has 8 divisors (see below), whose sum is σ = 141443355024. Its totient is φ = 23573892500.

The previous prime is 70721677487. The next prime is 70721677511. The reversal of 70721677506 is 60577612707.

It is a sphenic number, since it is the product of 3 distinct primes.

70721677506 is an admirable number.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 5893473120 + ... + 5893473131.

It is an arithmetic number, because the mean of its divisors is an integer number (17680419378).

Almost surely, 2^70721677506 is an apocalyptic number.

70721677506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70721677506 is a wasteful number, since it uses less digits than its factorization.

70721677506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786946256.

The product of its (nonzero) digits is 864360, while the sum is 48.

The spelling of 70721677506 in words is "seventy billion, seven hundred twenty-one million, six hundred seventy-seven thousand, five hundred six".