1256770485151 has 8 divisors (see below), whose sum is σ = 1258223880960. Its totient is φ = 1255317240408.

The previous prime is 1256770485127. The next prime is 1256770485169. The reversal of 1256770485151 is 1515840776521.

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

It is a cyclic number.

It is not a de Polignac number, because 1256770485151 - 2¹³ = 1256770476959 is a prime.

It is a super-2 number, since 2×1256770485151² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256770495151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31488330 + ... + 31528216.

It is an arithmetic number, because the mean of its divisors is an integer number (157277985120).

Almost surely, 2^{1256770485151} is an apocalyptic number.

1256770485151 is a deficient number, since it is larger than the sum of its proper divisors (1453395809).

1256770485151 is an equidigital number, since it uses as much as digits as its factorization.

1256770485151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75533.

The product of its (nonzero) digits is 2352000, while the sum is 52.

The spelling of 1256770485151 in words is "one trillion, two hundred fifty-six billion, seven hundred seventy million, four hundred eighty-five thousand, one hundred fifty-one".