72570277157 has 8 divisors (see below), whose sum is σ = 82985608896. Its totient is φ = 62166982752.

The previous prime is 72570277151. The next prime is 72570277163. The reversal of 72570277157 is 75177207527.

It is an interprime number because it is at equal distance from previous prime (72570277151) and next prime (72570277163).

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

It is not a de Polignac number, because 72570277157 - 2⁴ = 72570277141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72570277151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2996408 + ... + 3020529.

It is an arithmetic number, because the mean of its divisors is an integer number (10373201112).

Almost surely, 2^72570277157 is an apocalyptic number.

It is an amenable number.

72570277157 is a deficient number, since it is larger than the sum of its proper divisors (10415331739).

72570277157 is a wasteful number, since it uses less digits than its factorization.

72570277157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018667.

The product of its (nonzero) digits is 1680700, while the sum is 50.

The spelling of 72570277157 in words is "seventy-two billion, five hundred seventy million, two hundred seventy-seven thousand, one hundred fifty-seven".