1057763861 has 8 divisors (see below), whose sum is σ = 1318770624. Its totient is φ = 824231520.

The previous prime is 1057763821. The next prime is 1057763867. The reversal of 1057763861 is 1683677501.

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

It is not a de Polignac number, because 1057763861 - 2¹⁴ = 1057747477 is a prime.

It is a super-2 number, since 2×1057763861² = 2237728771275254642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057763867) 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, 6868520 + ... + 6868673.

It is an arithmetic number, because the mean of its divisors is an integer number (164846328).

Almost surely, 2^1057763861 is an apocalyptic number.

1057763861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1057763861 is a deficient number, since it is larger than the sum of its proper divisors (261006763).

1057763861 is a wasteful number, since it uses less digits than its factorization.

1057763861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13737211.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1057763861 is about 32523.2818300983. The cubic root of 1057763861 is about 1018.8953377853.

The spelling of 1057763861 in words is "one billion, fifty-seven million, seven hundred sixty-three thousand, eight hundred sixty-one".