1225875661932 has 54 divisors (see below), whose sum is σ = 2928837946692. Its totient is φ = 399068612544.

The previous prime is 1225875661931. The next prime is 1225875661937. The reversal of 1225875661932 is 2391665785221.

It is a super-2 number, since 2×1225875661932² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1225875661931) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 164919688 + ... + 164927120.

Almost surely, 2^{1225875661932} is an apocalyptic number.

1225875661932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1225875661932 is an abundant number, since it is smaller than the sum of its proper divisors (1702962284760).

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

1225875661932 is an frugal number, since it uses more digits than its factorization.

1225875661932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14959 (or 7481 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 1225875661932 in words is "one trillion, two hundred twenty-five billion, eight hundred seventy-five million, six hundred sixty-one thousand, nine hundred thirty-two".