649253796093 has 24 divisors (see below), whose sum is σ = 1073226630528. Its totient is φ = 370502812512.

The previous prime is 649253796089. The next prime is 649253796143. The reversal of 649253796093 is 390697352946.

649253796093 is a `hidden beast` number, since 6 + 4 + 9 + 2 + 537 + 9 + 6 + 0 + 93 = 666.

It is not a de Polignac number, because 649253796093 - 2² = 649253796089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 649253796093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649253796043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6888330 + ... + 6981947.

It is an arithmetic number, because the mean of its divisors is an integer number (44717776272).

Almost surely, 2^649253796093 is an apocalyptic number.

649253796093 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

649253796093 is a deficient number, since it is larger than the sum of its proper divisors (423972834435).

649253796093 is a wasteful number, since it uses less digits than its factorization.

649253796093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13871033 (or 13871030 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 63.

The spelling of 649253796093 in words is "six hundred forty-nine billion, two hundred fifty-three million, seven hundred ninety-six thousand, ninety-three".