72705105252070 has 8 divisors (see below), whose sum is σ = 130869189453744. Its totient is φ = 29082042100824.

The previous prime is 72705105252067. The next prime is 72705105252089. The reversal of 72705105252070 is 7025250150727.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3635255262594 + ... + 3635255262613.

It is an arithmetic number, because the mean of its divisors is an integer number (16358648681718).

Almost surely, 2^{72705105252070} is an apocalyptic number.

72705105252070 is a deficient number, since it is larger than the sum of its proper divisors (58164084201674).

72705105252070 is a wasteful number, since it uses less digits than its factorization.

72705105252070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270510525214.

The product of its (nonzero) digits is 343000, while the sum is 43.

The spelling of 72705105252070 in words is "seventy-two trillion, seven hundred five billion, one hundred five million, two hundred fifty-two thousand, seventy".