57026699661993 has 4 divisors (see below), whose sum is σ = 76035599549328. Its totient is φ = 38017799774660.

The previous prime is 57026699661937. The next prime is 57026699662021. The reversal of 57026699661993 is 39916699662075.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57026699661993 - 2⁶ = 57026699661929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57026699669993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504449943663 + ... + 9504449943668.

It is an arithmetic number, because the mean of its divisors is an integer number (19008899887332).

Almost surely, 2^{57026699661993} is an apocalyptic number.

It is an amenable number.

57026699661993 is a deficient number, since it is larger than the sum of its proper divisors (19008899887335).

57026699661993 is a wasteful number, since it uses less digits than its factorization.

57026699661993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19008899887334.

The product of its (nonzero) digits is 1785641760, while the sum is 78.

The spelling of 57026699661993 in words is "fifty-seven trillion, twenty-six billion, six hundred ninety-nine million, six hundred sixty-one thousand, nine hundred ninety-three".