157455147842 has 8 divisors (see below), whose sum is σ = 239028296976. Its totient is φ = 77779048852.

The previous prime is 157455147841. The next prime is 157455147923. The reversal of 157455147842 is 248741554751.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (157455147841) 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, 474262328 + ... + 474262659.

It is an arithmetic number, because the mean of its divisors is an integer number (29878537122).

Almost surely, 2^157455147842 is an apocalyptic number.

157455147842 is a deficient number, since it is larger than the sum of its proper divisors (81573149134).

157455147842 is an equidigital number, since it uses as much as digits as its factorization.

157455147842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948525072.

The product of its digits is 6272000, while the sum is 53.

The spelling of 157455147842 in words is "one hundred fifty-seven billion, four hundred fifty-five million, one hundred forty-seven thousand, eight hundred forty-two".