15425879040 has 528 divisors, whose sum is σ = 62821545696. Its totient is φ = 3450470400.

The previous prime is 15425879017. The next prime is 15425879047. The reversal of 15425879040 is 4097852451.

It is a tau number, because it is divible by the number of its divisors (528).

It is a super-2 number, since 2×15425879040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15425879047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6588270 + ... + 6590610.

Almost surely, 2^15425879040 is an apocalyptic number.

15425879040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15425879040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31410772848).

15425879040 is an abundant number, since it is smaller than the sum of its proper divisors (47395666656).

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

15425879040 is a wasteful number, since it uses less digits than its factorization.

15425879040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 15425879040 in words is "fifteen billion, four hundred twenty-five million, eight hundred seventy-nine thousand, forty".