15403345542 has 48 divisors (see below), whose sum is σ = 36182437200. Its totient is φ = 4707671616.

The previous prime is 15403345483. The next prime is 15403345549. The reversal of 15403345542 is 24554330451.

15403345542 is a `hidden beast` number, since 1 + 5 + 40 + 33 + 45 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15403345497 and 15403345506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15403345549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186028 + ... + 255759.

It is an arithmetic number, because the mean of its divisors is an integer number (753800775).

Almost surely, 2^15403345542 is an apocalyptic number.

15403345542 is an abundant number, since it is smaller than the sum of its proper divisors (20779091658).

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

15403345542 is a wasteful number, since it uses less digits than its factorization.

15403345542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441957 (or 441954 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 15403345542 its reverse (24554330451), we get a palindrome (39957675993).

The spelling of 15403345542 in words is "fifteen billion, four hundred three million, three hundred forty-five thousand, five hundred forty-two".