157670125447 has 2 divisors, whose sum is σ = 157670125448. Its totient is φ = 157670125446.

The previous prime is 157670125439. The next prime is 157670125493. The reversal of 157670125447 is 744521076751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157670125447 - 2³ = 157670125439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157670125447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157670125247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78835062723 + 78835062724.

It is an arithmetic number, because the mean of its divisors is an integer number (78835062724).

Almost surely, 2^157670125447 is an apocalyptic number.

157670125447 is a deficient number, since it is larger than the sum of its proper divisors (1).

157670125447 is an equidigital number, since it uses as much as digits as its factorization.

157670125447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 157670125447 in words is "one hundred fifty-seven billion, six hundred seventy million, one hundred twenty-five thousand, four hundred forty-seven".