1258774109406 has 48 divisors (see below), whose sum is σ = 2976744401280. Its totient is φ = 381259502160.

The previous prime is 1258774109321. The next prime is 1258774109413. The reversal of 1258774109406 is 6049014778521.

1258774109406 is a `hidden beast` number, since 1 + 2 + 587 + 7 + 4 + 10 + 9 + 40 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1155240 + ... + 1962683.

It is an arithmetic number, because the mean of its divisors is an integer number (62015508360).

Almost surely, 2^{1258774109406} is an apocalyptic number.

1258774109406 is an abundant number, since it is smaller than the sum of its proper divisors (1717970291874).

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

1258774109406 is a wasteful number, since it uses less digits than its factorization.

1258774109406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119981 (or 3119978 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 1258774109406 in words is "one trillion, two hundred fifty-eight billion, seven hundred seventy-four million, one hundred nine thousand, four hundred six".