15263750040 has 128 divisors (see below), whose sum is σ = 57090424320. Its totient is φ = 3171686400.

The previous prime is 15263750039. The next prime is 15263750053. The reversal of 15263750040 is 4005736251.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 15263749983 and 15263750010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816721 + ... + 835200.

It is an arithmetic number, because the mean of its divisors is an integer number (446018940).

Almost surely, 2^15263750040 is an apocalyptic number.

15263750040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15263750040 is an abundant number, since it is smaller than the sum of its proper divisors (41826674280).

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

15263750040 is a wasteful number, since it uses less digits than its factorization.

15263750040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651953 (or 1651949 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 15263750040 in words is "fifteen billion, two hundred sixty-three million, seven hundred fifty thousand, forty".