1870117425 has 72 divisors (see below), whose sum is σ = 3673425600. Its totient is φ = 901929600.

The previous prime is 1870117421. The next prime is 1870117433. The reversal of 1870117425 is 5247110781.

It is not a de Polignac number, because 1870117425 - 2² = 1870117421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1870117425.

It is not an unprimeable number, because it can be changed into a prime (1870117421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 490627 + ... + 494423.

It is an arithmetic number, because the mean of its divisors is an integer number (51019800).

Almost surely, 2^1870117425 is an apocalyptic number.

1870117425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1870117425 is a deficient number, since it is larger than the sum of its proper divisors (1803308175).

1870117425 is a wasteful number, since it uses less digits than its factorization.

1870117425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1870117425 is about 43244.8543181729. The cubic root of 1870117425 is about 1232.0347542569.

The spelling of 1870117425 in words is "one billion, eight hundred seventy million, one hundred seventeen thousand, four hundred twenty-five".