11887721325 has 192 divisors, whose sum is σ = 24185952000. Its totient is φ = 5697699840.

The previous prime is 11887721269. The next prime is 11887721341. The reversal of 11887721325 is 52312778811.

It is not a de Polignac number, because 11887721325 - 2¹² = 11887717229 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 46255597 + ... + 46255853.

It is an arithmetic number, because the mean of its divisors is an integer number (125968500).

Almost surely, 2^11887721325 is an apocalyptic number.

11887721325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11887721325 is an abundant number, since it is smaller than the sum of its proper divisors (12298230675).

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

11887721325 is a wasteful number, since it uses less digits than its factorization.

11887721325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 450 counting only the distinct ones).

The product of its digits is 188160, while the sum is 45.

The spelling of 11887721325 in words is "eleven billion, eight hundred eighty-seven million, seven hundred twenty-one thousand, three hundred twenty-five".