46234509978 has 32 divisors (see below), whose sum is σ = 101567808000. Its totient is φ = 13965572016.

The previous prime is 46234509977. The next prime is 46234509989. The reversal of 46234509978 is 87990543264.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (46234509973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8814028 + ... + 8819271.

It is an arithmetic number, because the mean of its divisors is an integer number (3173994000).

Almost surely, 2^46234509978 is an apocalyptic number.

46234509978 is an abundant number, since it is smaller than the sum of its proper divisors (55333298022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

46234509978 is a wasteful number, since it uses less digits than its factorization.

46234509978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17633346.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 46234509978 in words is "forty-six billion, two hundred thirty-four million, five hundred nine thousand, nine hundred seventy-eight".