46781778040 has 64 divisors (see below), whose sum is σ = 110200759200. Its totient is φ = 17849728512.

The previous prime is 46781777993. The next prime is 46781778059. The reversal of 46781778040 is 4087718764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146667 + ... + 339226.

Almost surely, 2^46781778040 is an apocalyptic number.

46781778040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46781778040 is an abundant number, since it is smaller than the sum of its proper divisors (63418981160).

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

46781778040 is a wasteful number, since it uses less digits than its factorization.

46781778040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486016 (or 486012 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 52.

The spelling of 46781778040 in words is "forty-six billion, seven hundred eighty-one million, seven hundred seventy-eight thousand, forty".