1051764688 has 20 divisors (see below), whose sum is σ = 2194547908. Its totient is φ = 485429760.

The previous prime is 1051764673. The next prime is 1051764691. The reversal of 1051764688 is 8864671501.

It can be written as a sum of positive squares in 2 ways, for example, as 663989824 + 387774864 = 25768^2 + 19692^2 .

It is a super-2 number, since 2×1051764688² = 2212417917847474688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528073 + ... + 2528488.

Almost surely, 2^1051764688 is an apocalyptic number.

It is an amenable number.

1051764688 is an abundant number, since it is smaller than the sum of its proper divisors (1142783220).

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

1051764688 is a wasteful number, since it uses less digits than its factorization.

1051764688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056582 (or 5056576 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1051764688 is about 32430.9217877013. The cubic root of 1051764688 is about 1016.9654420755.

The spelling of 1051764688 in words is "one billion, fifty-one million, seven hundred sixty-four thousand, six hundred eighty-eight".