45531781641217 has 32 divisors (see below), whose sum is σ = 47848757299200. Its totient is φ = 43287046572672.

The previous prime is 45531781641113. The next prime is 45531781641221. The reversal of 45531781641217 is 71214618713554.

It is a cyclic number.

It is not a de Polignac number, because 45531781641217 - 2⁷ = 45531781641089 is a prime.

It is a super-2 number, since 2×45531781641217² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45531781641287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1967398948 + ... + 1967422090.

It is an arithmetic number, because the mean of its divisors is an integer number (1495273665600).

Almost surely, 2^{45531781641217} is an apocalyptic number.

It is an amenable number.

45531781641217 is a deficient number, since it is larger than the sum of its proper divisors (2316975657983).

45531781641217 is a wasteful number, since it uses less digits than its factorization.

45531781641217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30877.

The product of its digits is 5644800, while the sum is 55.

The spelling of 45531781641217 in words is "forty-five trillion, five hundred thirty-one billion, seven hundred eighty-one million, six hundred forty-one thousand, two hundred seventeen".