46178497993 has 4 divisors (see below), whose sum is σ = 46202169088. Its totient is φ = 46154826900.

The previous prime is 46178497991. The next prime is 46178498017. The reversal of 46178497993 is 39979487164.

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 46178497993 - 2¹ = 46178497991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46178497991) 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 3 ways as a sum of consecutive naturals, for example, 11832621 + ... + 11836522.

It is an arithmetic number, because the mean of its divisors is an integer number (11550542272).

Almost surely, 2^46178497993 is an apocalyptic number.

It is an amenable number.

46178497993 is a deficient number, since it is larger than the sum of its proper divisors (23671095).

46178497993 is a wasteful number, since it uses less digits than its factorization.

46178497993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23671094.

The product of its digits is 82301184, while the sum is 67.

The spelling of 46178497993 in words is "forty-six billion, one hundred seventy-eight million, four hundred ninety-seven thousand, nine hundred ninety-three".