21887351741376 has 896 divisors, whose sum is σ = 74613372134400. Its totient is φ = 6228824555520.

The previous prime is 21887351741369. The next prime is 21887351741383. The reversal of 21887351741376 is 67314715378812.

21887351741376 is a `hidden beast` number, since 2 + 1 + 8 + 8 + 7 + 3 + 517 + 41 + 3 + 76 = 666.

It is an interprime number because it is at equal distance from previous prime (21887351741369) and next prime (21887351741383).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6091663036 + ... + 6091666628.

Almost surely, 2^{21887351741376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21887351741376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37306686067200).

21887351741376 is an abundant number, since it is smaller than the sum of its proper divisors (52726020393024).

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

21887351741376 is a wasteful number, since it uses less digits than its factorization.

21887351741376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954 (or 3938 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 21887351741376 in words is "twenty-one trillion, eight hundred eighty-seven billion, three hundred fifty-one million, seven hundred forty-one thousand, three hundred seventy-six".