1061874036225 has 72 divisors (see below), whose sum is σ = 1917016063040. Its totient is φ = 561859597440.

The previous prime is 1061874036199. The next prime is 1061874036227. The reversal of 1061874036225 is 5226304781601.

1061874036225 is a `hidden beast` number, since 1 + 0 + 6 + 18 + 7 + 4 + 0 + 3 + 622 + 5 = 666.

It is not a de Polignac number, because 1061874036225 - 2⁵ = 1061874036193 is a prime.

It is a super-5 number, since 5×1061874036225⁵ (a number of 61 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1061874036227) 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, 14545164 + ... + 14617986.

Almost surely, 2^{1061874036225} is an apocalyptic number.

1061874036225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061874036225 is a deficient number, since it is larger than the sum of its proper divisors (855142026815).

1061874036225 is a wasteful number, since it uses less digits than its factorization.

1061874036225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73351 (or 73343 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 1061874036225 in words is "one trillion, sixty-one billion, eight hundred seventy-four million, thirty-six thousand, two hundred twenty-five".