1951087488 has 192 divisors, whose sum is σ = 6096560400. Its totient is φ = 551190528.

The previous prime is 1951087477. The next prime is 1951087543. The reversal of 1951087488 is 8847801591.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 1951087488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1824618 + ... + 1825686.

Almost surely, 2^1951087488 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 1951087488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3048280200).

1951087488 is an abundant number, since it is smaller than the sum of its proper divisors (4145472912).

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

1951087488 is a wasteful number, since it uses less digits than its factorization.

1951087488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The square root of 1951087488 is about 44171.1159922409. The cubic root of 1951087488 is about 1249.5651795358.

The spelling of 1951087488 in words is "one billion, nine hundred fifty-one million, eighty-seven thousand, four hundred eighty-eight".