45437697993 has 8 divisors (see below), whose sum is σ = 61992518368. Its totient is φ = 29587338144.

The previous prime is 45437697979. The next prime is 45437698003. The reversal of 45437697993 is 39979673454.

45437697993 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 not a de Polignac number, because 45437697993 - 2¹⁴ = 45437681609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45437698993) 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, 176114980 + ... + 176115237.

It is an arithmetic number, because the mean of its divisors is an integer number (7749064796).

Almost surely, 2^45437697993 is an apocalyptic number.

45437697993 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

45437697993 is a deficient number, since it is larger than the sum of its proper divisors (16554820375).

45437697993 is a wasteful number, since it uses less digits than its factorization.

45437697993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352230263.

The product of its digits is 154314720, while the sum is 66.

The spelling of 45437697993 in words is "forty-five billion, four hundred thirty-seven million, six hundred ninety-seven thousand, nine hundred ninety-three".