64857880023 has 8 divisors (see below), whose sum is σ = 86481455088. Its totient is φ = 43236445824.

The previous prime is 64857880019. The next prime is 64857880079. The reversal of 64857880023 is 32008875846.

It is a happy number.

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

It is not a de Polignac number, because 64857880023 - 2² = 64857880019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64857870023) 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, 463140 + ... + 586697.

It is an arithmetic number, because the mean of its divisors is an integer number (10810181886).

Almost surely, 2^64857880023 is an apocalyptic number.

64857880023 is a deficient number, since it is larger than the sum of its proper divisors (21623575065).

64857880023 is a wasteful number, since it uses less digits than its factorization.

64857880023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070433.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 64857880023 in words is "sixty-four billion, eight hundred fifty-seven million, eight hundred eighty thousand, twenty-three".