15293142740 has 12 divisors (see below), whose sum is σ = 32115599796. Its totient is φ = 6117257088.

The previous prime is 15293142701. The next prime is 15293142749. The reversal of 15293142740 is 4724139251.

It can be written as a sum of positive squares in 2 ways, for example, as 6270422596 + 9022720144 = 79186^2 + 94988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15293142694 and 15293142703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15293142749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382328549 + ... + 382328588.

It is an arithmetic number, because the mean of its divisors is an integer number (2676299983).

Almost surely, 2^15293142740 is an apocalyptic number.

15293142740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15293142740 is an abundant number, since it is smaller than the sum of its proper divisors (16822457056).

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

15293142740 is a wasteful number, since it uses less digits than its factorization.

15293142740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764657146 (or 764657144 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 15293142740 in words is "fifteen billion, two hundred ninety-three million, one hundred forty-two thousand, seven hundred forty".