157123349863 has 4 divisors (see below), whose sum is σ = 162541396440. Its totient is φ = 151705303288.

The previous prime is 157123349861. The next prime is 157123349897. The reversal of 157123349863 is 368943321751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368943321751 = 373 ⋅989124187.

It is a cyclic number.

It is not a de Polignac number, because 157123349863 - 2¹ = 157123349861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157123349863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157123349861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2709023245 + ... + 2709023302.

It is an arithmetic number, because the mean of its divisors is an integer number (40635349110).

Almost surely, 2^157123349863 is an apocalyptic number.

157123349863 is a deficient number, since it is larger than the sum of its proper divisors (5418046577).

157123349863 is an equidigital number, since it uses as much as digits as its factorization.

157123349863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418046576.

The product of its digits is 3265920, while the sum is 52.

The spelling of 157123349863 in words is "one hundred fifty-seven billion, one hundred twenty-three million, three hundred forty-nine thousand, eight hundred sixty-three".