15457848542 has 4 divisors (see below), whose sum is σ = 23186772816. Its totient is φ = 7728924270.

The previous prime is 15457848541. The next prime is 15457848557. The reversal of 15457848542 is 24584875451.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15457848541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3864462134 + ... + 3864462137.

It is an arithmetic number, because the mean of its divisors is an integer number (5796693204).

Almost surely, 2^15457848542 is an apocalyptic number.

15457848542 is a deficient number, since it is larger than the sum of its proper divisors (7728924274).

15457848542 is an equidigital number, since it uses as much as digits as its factorization.

15457848542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728924273.

The product of its digits is 7168000, while the sum is 53.

The spelling of 15457848542 in words is "fifteen billion, four hundred fifty-seven million, eight hundred forty-eight thousand, five hundred forty-two".