15872453331540 has 192 divisors, whose sum is σ = 48065430454272. Its totient is φ = 3890435904000.

The previous prime is 15872453331437. The next prime is 15872453331557. The reversal of 15872453331540 is 4513335427851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 482267685 + ... + 482300595.

It is an arithmetic number, because the mean of its divisors is an integer number (250340783616).

Almost surely, 2^{15872453331540} is an apocalyptic number.

15872453331540 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 15872453331540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24032715227136).

15872453331540 is an abundant number, since it is smaller than the sum of its proper divisors (32192977122732).

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

15872453331540 is a wasteful number, since it uses less digits than its factorization.

15872453331540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35550 (or 35548 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 51.

The spelling of 15872453331540 in words is "fifteen trillion, eight hundred seventy-two billion, four hundred fifty-three million, three hundred thirty-one thousand, five hundred forty".