1264827888 has 30 divisors (see below), whose sum is σ = 3539761784. Its totient is φ = 421609248.

The previous prime is 1264827827. The next prime is 1264827917. The reversal of 1264827888 is 8887284621.

1264827888 is a `hidden beast` number, since 12 + 6 + 482 + 78 + 88 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4391620 + ... + 4391907.

Almost surely, 2^1264827888 is an apocalyptic number.

1264827888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1264827888 is an abundant number, since it is smaller than the sum of its proper divisors (2274933896).

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

1264827888 is a wasteful number, since it uses less digits than its factorization.

1264827888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8783541 (or 8783532 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 54.

The square root of 1264827888 is about 35564.4188480566. The cubic root of 1264827888 is about 1081.4600417548.

The spelling of 1264827888 in words is "one billion, two hundred sixty-four million, eight hundred twenty-seven thousand, eight hundred eighty-eight".