46205201991 has 16 divisors (see below), whose sum is σ = 68139066464. Its totient is φ = 27665483904.

The previous prime is 46205201981. The next prime is 46205201993. The reversal of 46205201991 is 19910250264.

It is not a de Polignac number, because 46205201991 - 2¹⁰ = 46205200967 is a prime.

It is a super-3 number, since 3×46205201991³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46205201993) 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, 16008676 + ... + 16011561.

It is an arithmetic number, because the mean of its divisors is an integer number (4258691654).

Almost surely, 2^46205201991 is an apocalyptic number.

46205201991 is a deficient number, since it is larger than the sum of its proper divisors (21933864473).

46205201991 is a wasteful number, since it uses less digits than its factorization.

46205201991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32020290.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 46205201991 in words is "forty-six billion, two hundred five million, two hundred one thousand, nine hundred ninety-one".