157268472638 has 8 divisors (see below), whose sum is σ = 235911728232. Its totient is φ = 78631229896.

The previous prime is 157268472631. The next prime is 157268472643. The reversal of 157268472638 is 836274862751.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157268472631) 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 in 3 ways as a sum of consecutive naturals, for example, 1437245 + ... + 1542792.

It is an arithmetic number, because the mean of its divisors is an integer number (29488966029).

Almost surely, 2^157268472638 is an apocalyptic number.

157268472638 is a deficient number, since it is larger than the sum of its proper divisors (78643255594).

157268472638 is a wasteful number, since it uses less digits than its factorization.

157268472638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006426.

The product of its digits is 27095040, while the sum is 59.

The spelling of 157268472638 in words is "one hundred fifty-seven billion, two hundred sixty-eight million, four hundred seventy-two thousand, six hundred thirty-eight".