64074949263 has 64 divisors (see below), whose sum is σ = 103827588480. Its totient is φ = 38815801344.

The previous prime is 64074949259. The next prime is 64074949291. The reversal of 64074949263 is 36294947046.

64074949263 is a `hidden beast` number, since 6 + 4 + 0 + 7 + 494 + 92 + 63 = 666.

It is not a de Polignac number, because 64074949263 - 2² = 64074949259 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64074949223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15192331 + ... + 15196547.

It is an arithmetic number, because the mean of its divisors is an integer number (1622306070).

Almost surely, 2^64074949263 is an apocalyptic number.

64074949263 is a deficient number, since it is larger than the sum of its proper divisors (39752639217).

64074949263 is a wasteful number, since it uses less digits than its factorization.

64074949263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 64074949263 in words is "sixty-four billion, seventy-four million, nine hundred forty-nine thousand, two hundred sixty-three".