1455245361638 has 8 divisors (see below), whose sum is σ = 2193837229200. Its totient is φ = 723966285240.

The previous prime is 1455245361607. The next prime is 1455245361673. The reversal of 1455245361638 is 8361635425541.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1455245361638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1828197293 + ... + 1828198088.

It is an arithmetic number, because the mean of its divisors is an integer number (274229653650).

Almost surely, 2^{1455245361638} is an apocalyptic number.

1455245361638 is a deficient number, since it is larger than the sum of its proper divisors (738591867562).

1455245361638 is a wasteful number, since it uses less digits than its factorization.

1455245361638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656395582.

The product of its digits is 10368000, while the sum is 53.

The spelling of 1455245361638 in words is "one trillion, four hundred fifty-five billion, two hundred forty-five million, three hundred sixty-one thousand, six hundred thirty-eight".