46778264639 has 8 divisors (see below), whose sum is σ = 48815665152. Its totient is φ = 44741161080.

The previous prime is 46778264629. The next prime is 46778264653. The reversal of 46778264639 is 93646287764.

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

It is a cyclic number.

It is not a de Polignac number, because 46778264639 - 2⁸ = 46778264383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46778264609) 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, 284642 + ... + 417824.

It is an arithmetic number, because the mean of its divisors is an integer number (6101958144).

Almost surely, 2^46778264639 is an apocalyptic number.

46778264639 is a deficient number, since it is larger than the sum of its proper divisors (2037400513).

46778264639 is a wasteful number, since it uses less digits than its factorization.

46778264639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148477.

The product of its digits is 73156608, while the sum is 62.

The spelling of 46778264639 in words is "forty-six billion, seven hundred seventy-eight million, two hundred sixty-four thousand, six hundred thirty-nine".