1025212709475 has 36 divisors (see below), whose sum is σ = 1895504400192. Its totient is φ = 529142040000.

The previous prime is 1025212709471. The next prime is 1025212709551. The reversal of 1025212709475 is 5749072125201.

1025212709475 is a `hidden beast` number, since 1 + 0 + 2 + 52 + 127 + 0 + 9 + 475 = 666.

It is not a de Polignac number, because 1025212709475 - 2² = 1025212709471 is a prime.

It is a super-2 number, since 2×1025212709475² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1025212709475.

It is not an unprimeable number, because it can be changed into a prime (1025212709471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 73484976 + ... + 73498925.

Almost surely, 2^{1025212709475} is an apocalyptic number.

1025212709475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025212709475 is a deficient number, since it is larger than the sum of its proper divisors (870291690717).

1025212709475 is a wasteful number, since it uses less digits than its factorization.

1025212709475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146983948 (or 146983940 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 1025212709475 in words is "one trillion, twenty-five billion, two hundred twelve million, seven hundred nine thousand, four hundred seventy-five".