1260987876 has 36 divisors (see below), whose sum is σ = 3192606144. Its totient is φ = 419655600.

The previous prime is 1260987851. The next prime is 1260987881. The reversal of 1260987876 is 6787890621.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5040 + ... + 50471.

It is an arithmetic number, because the mean of its divisors is an integer number (88683504).

Almost surely, 2^1260987876 is an apocalyptic number.

It is an amenable number.

1260987876 is an abundant number, since it is smaller than the sum of its proper divisors (1931618268).

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

1260987876 is a wasteful number, since it uses less digits than its factorization.

1260987876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56152 (or 56147 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 1260987876 is about 35510.3910989445. The cubic root of 1260987876 is about 1080.3644963115.

The spelling of 1260987876 in words is "one billion, two hundred sixty million, nine hundred eighty-seven thousand, eight hundred seventy-six".