1057851078 has 16 divisors (see below), whose sum is σ = 2240155440. Its totient is φ = 331874816.

The previous prime is 1057851077. The next prime is 1057851079. The reversal of 1057851078 is 8701587501.

It is an interprime number because it is at equal distance from previous prime (1057851077) and next prime (1057851079).

It is a super-2 number, since 2×1057851078² = 2238097806451524168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (1057851077) 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, 5185443 + ... + 5185646.

It is an arithmetic number, because the mean of its divisors is an integer number (140009715).

Almost surely, 2^1057851078 is an apocalyptic number.

1057851078 is an abundant number, since it is smaller than the sum of its proper divisors (1182304362).

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

1057851078 is a wasteful number, since it uses less digits than its factorization.

1057851078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371111.

The product of its (nonzero) digits is 78400, while the sum is 42.

The square root of 1057851078 is about 32524.6226419308. The cubic root of 1057851078 is about 1018.9233410589.

The spelling of 1057851078 in words is "one billion, fifty-seven million, eight hundred fifty-one thousand, seventy-eight".