46149916721 has 4 divisors (see below), whose sum is σ = 47638623744. Its totient is φ = 44661209700.

The previous prime is 46149916693. The next prime is 46149916723. The reversal of 46149916721 is 12761994164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 46149916721 - 2²² = 46145722417 is a prime.

It is a super-4 number, since 4×46149916721⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 46149916721.

It is not an unprimeable number, because it can be changed into a prime (46149916723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744353465 + ... + 744353526.

It is an arithmetic number, because the mean of its divisors is an integer number (11909655936).

Almost surely, 2^46149916721 is an apocalyptic number.

It is an amenable number.

46149916721 is a deficient number, since it is larger than the sum of its proper divisors (1488707023).

46149916721 is a wasteful number, since it uses less digits than its factorization.

46149916721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488707022.

The product of its digits is 653184, while the sum is 50.

The spelling of 46149916721 in words is "forty-six billion, one hundred forty-nine million, nine hundred sixteen thousand, seven hundred twenty-one".