46991992921 has 8 divisors (see below), whose sum is σ = 50725990080. Its totient is φ = 43398901392.

The previous prime is 46991992913. The next prime is 46991992933. The reversal of 46991992921 is 12929919964.

46991992921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 46991992921 - 2³ = 46991992913 is a prime.

It is a super-2 number, since 2×46991992921² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46991992921.

It is not an unprimeable number, because it can be changed into a prime (46991999921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35225715 + ... + 35227048.

It is an arithmetic number, because the mean of its divisors is an integer number (6340748760).

Almost surely, 2^46991992921 is an apocalyptic number.

It is an amenable number.

46991992921 is a deficient number, since it is larger than the sum of its proper divisors (3733997159).

46991992921 is a wasteful number, since it uses less digits than its factorization.

46991992921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70452815.

The product of its digits is 5668704, while the sum is 61.

The spelling of 46991992921 in words is "forty-six billion, nine hundred ninety-one million, nine hundred ninety-two thousand, nine hundred twenty-one".