1256698068 has 24 divisors (see below), whose sum is σ = 2939962368. Its totient is φ = 417804096.

The previous prime is 1256698063. The next prime is 1256698087. The reversal of 1256698068 is 8608966521.

1256698068 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1256698068² = 3158580068229865248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1256698068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1256698063) 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, 132121 + ... + 141312.

It is an arithmetic number, because the mean of its divisors is an integer number (122498432).

Almost surely, 2^1256698068 is an apocalyptic number.

It is an amenable number.

1256698068 is an abundant number, since it is smaller than the sum of its proper divisors (1683264300).

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

1256698068 is a wasteful number, since it uses less digits than its factorization.

1256698068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273823 (or 273821 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 1256698068 is about 35449.9374893666. The cubic root of 1256698068 is about 1079.1379918646.

The spelling of 1256698068 in words is "one billion, two hundred fifty-six million, six hundred ninety-eight thousand, sixty-eight".