46091977920 has 336 divisors, whose sum is σ = 166763151360. Its totient is φ = 11662092288.

The previous prime is 46091977891. The next prime is 46091977931. The reversal of 46091977920 is 2977919064.

46091977920 is a `hidden beast` number, since 4 + 609 + 1 + 9 + 7 + 7 + 9 + 20 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 8409741 + ... + 8415219.

Almost surely, 2^46091977920 is an apocalyptic number.

46091977920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 46091977920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83381575680).

46091977920 is an abundant number, since it is smaller than the sum of its proper divisors (120671173440).

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

46091977920 is a wasteful number, since it uses less digits than its factorization.

46091977920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652 (or 5639 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 46091977920 in words is "forty-six billion, ninety-one million, nine hundred seventy-seven thousand, nine hundred twenty".