45493639455 has 32 divisors (see below), whose sum is σ = 79554014208. Its totient is φ = 22016707200.

The previous prime is 45493639453. The next prime is 45493639511. The reversal of 45493639455 is 55493639454.

It is not a de Polignac number, because 45493639455 - 2¹ = 45493639453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45493639395 and 45493639404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45493639453) 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, 165559 + ... + 344088.

It is an arithmetic number, because the mean of its divisors is an integer number (2486062944).

Almost surely, 2^45493639455 is an apocalyptic number.

45493639455 is a deficient number, since it is larger than the sum of its proper divisors (34060374753).

45493639455 is a wasteful number, since it uses less digits than its factorization.

45493639455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510207.

The product of its digits is 34992000, while the sum is 57.

Subtracting 45493639455 from its reverse (55493639454), we obtain a palindrome (9999999999).

The spelling of 45493639455 in words is "forty-five billion, four hundred ninety-three million, six hundred thirty-nine thousand, four hundred fifty-five".