57966999994 has 4 divisors (see below), whose sum is σ = 86950499994. Its totient is φ = 28983499996.

The previous prime is 57966999991. The next prime is 57966999997. The reversal of 57966999994 is 49999966975.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57966999991) and next prime (57966999997).

It can be written as a sum of positive squares in only one way, i.e., 38265228225 + 19701771769 = 195615^2 + 140363^2 .

It is not an unprimeable number, because it can be changed into a prime (57966999991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14491749997 + ... + 14491750000.

Almost surely, 2^57966999994 is an apocalyptic number.

57966999994 is a deficient number, since it is larger than the sum of its proper divisors (28983500000).

57966999994 is a wasteful number, since it uses less digits than its factorization.

57966999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28983499999.

The product of its digits is 2678462640, while the sum is 82.

The spelling of 57966999994 in words is "fifty-seven billion, nine hundred sixty-six million, nine hundred ninety-nine thousand, nine hundred ninety-four".