157263447742 has 16 divisors (see below), whose sum is σ = 236141848800. Its totient is φ = 78549539040.

The previous prime is 157263447707. The next prime is 157263447743. The reversal of 157263447742 is 247744362751.

It is a self number, because there is not a number n which added to its sum of digits gives 157263447742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157263447743) 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, 10163892 + ... + 10179352.

It is an arithmetic number, because the mean of its divisors is an integer number (14758865550).

Almost surely, 2^157263447742 is an apocalyptic number.

157263447742 is a deficient number, since it is larger than the sum of its proper divisors (78878401058).

157263447742 is a wasteful number, since it uses less digits than its factorization.

157263447742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20451.

The product of its digits is 7902720, while the sum is 52.

The spelling of 157263447742 in words is "one hundred fifty-seven billion, two hundred sixty-three million, four hundred forty-seven thousand, seven hundred forty-two".