1258578350261 has 8 divisors (see below), whose sum is σ = 1260150091200. Its totient is φ = 1257006851488.

The previous prime is 1258578350233. The next prime is 1258578350303. The reversal of 1258578350261 is 1620538758521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1258578350261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258578350201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11772530 + ... + 11878956.

It is an arithmetic number, because the mean of its divisors is an integer number (157518761400).

Almost surely, 2^{1258578350261} is an apocalyptic number.

It is an amenable number.

1258578350261 is a deficient number, since it is larger than the sum of its proper divisors (1571740939).

1258578350261 is a wasteful number, since it uses less digits than its factorization.

1258578350261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121083.

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 1258578350261 in words is "one trillion, two hundred fifty-eight billion, five hundred seventy-eight million, three hundred fifty thousand, two hundred sixty-one".