15402234542 has 16 divisors (see below), whose sum is σ = 23176364112. Its totient is φ = 7676800320.

The previous prime is 15402234517. The next prime is 15402234569. The reversal of 15402234542 is 24543220451.

It is a junction number, because it is equal to n+sod(n) for n = 15402234499 and 15402234508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2242778 + ... + 2249634.

It is an arithmetic number, because the mean of its divisors is an integer number (1448522757).

Almost surely, 2^15402234542 is an apocalyptic number.

15402234542 is a deficient number, since it is larger than the sum of its proper divisors (7774129570).

15402234542 is a wasteful number, since it uses less digits than its factorization.

15402234542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 15402234542 its reverse (24543220451), we get a palindrome (39945454993).

The spelling of 15402234542 in words is "fifteen billion, four hundred two million, two hundred thirty-four thousand, five hundred forty-two".