157228847387 has 2 divisors, whose sum is σ = 157228847388. Its totient is φ = 157228847386.

The previous prime is 157228847357. The next prime is 157228847471. The reversal of 157228847387 is 783748822751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157228847387 - 2⁶ = 157228847323 is a prime.

It is a super-4 number, since 4×157228847387⁴ (a number of 46 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (157228847327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78614423693 + 78614423694.

It is an arithmetic number, because the mean of its divisors is an integer number (78614423694).

Almost surely, 2^157228847387 is an apocalyptic number.

157228847387 is a deficient number, since it is larger than the sum of its proper divisors (1).

157228847387 is an equidigital number, since it uses as much as digits as its factorization.

157228847387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42147840, while the sum is 62.

The spelling of 157228847387 in words is "one hundred fifty-seven billion, two hundred twenty-eight million, eight hundred forty-seven thousand, three hundred eighty-seven".