1298109625275 has 48 divisors (see below), whose sum is σ = 2357390903040. Its totient is φ = 627370128000.

The previous prime is 1298109625207. The next prime is 1298109625369. The reversal of 1298109625275 is 5725269018921.

It is not a de Polignac number, because 1298109625275 - 2¹³ = 1298109617083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19770576 + ... + 19836125.

It is an arithmetic number, because the mean of its divisors is an integer number (49112310480).

Almost surely, 2^{1298109625275} is an apocalyptic number.

1298109625275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1298109625275 is a deficient number, since it is larger than the sum of its proper divisors (1059281277765).

1298109625275 is a wasteful number, since it uses less digits than its factorization.

1298109625275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39606756 (or 39606751 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 1298109625275 in words is "one trillion, two hundred ninety-eight billion, one hundred nine million, six hundred twenty-five thousand, two hundred seventy-five".