1253677806 has 12 divisors (see below), whose sum is σ = 2716301952. Its totient is φ = 417892596.

The previous prime is 1253677793. The next prime is 1253677807. The reversal of 1253677806 is 6087763521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253677807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34824366 + ... + 34824401.

It is an arithmetic number, because the mean of its divisors is an integer number (226358496).

Almost surely, 2^1253677806 is an apocalyptic number.

1253677806 is an abundant number, since it is smaller than the sum of its proper divisors (1462624146).

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

1253677806 is a wasteful number, since it uses less digits than its factorization.

1253677806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69648775 (or 69648772 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 1253677806 is about 35407.3128887240. The cubic root of 1253677806 is about 1078.2727896102.

The spelling of 1253677806 in words is "one billion, two hundred fifty-three million, six hundred seventy-seven thousand, eight hundred six".