157443171490 has 32 divisors (see below), whose sum is σ = 325432779840. Its totient is φ = 54238795200.

The previous prime is 157443171451. The next prime is 157443171497. The reversal of 157443171490 is 94171344751.

It is a self number, because there is not a number n which added to its sum of digits gives 157443171490.

It is not an unprimeable number, because it can be changed into a prime (157443171497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37663741 + ... + 37667920.

It is an arithmetic number, because the mean of its divisors is an integer number (10169774370).

Almost surely, 2^157443171490 is an apocalyptic number.

157443171490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157443171490 is an abundant number, since it is smaller than the sum of its proper divisors (167989608350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157443171490 is a wasteful number, since it uses less digits than its factorization.

157443171490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75331698.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 157443171490 in words is "one hundred fifty-seven billion, four hundred forty-three million, one hundred seventy-one thousand, four hundred ninety".