1398871542745 has 32 divisors (see below), whose sum is σ = 1706272888320. Its totient is φ = 1100756321280.

The previous prime is 1398871542709. The next prime is 1398871542751. The reversal of 1398871542745 is 5472451788931.

It is a happy number.

It is not a de Polignac number, because 1398871542745 - 2¹⁵ = 1398871509977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368801569 + ... + 368805361.

It is an arithmetic number, because the mean of its divisors is an integer number (53321027760).

Almost surely, 2^{1398871542745} is an apocalyptic number.

It is an amenable number.

1398871542745 is a deficient number, since it is larger than the sum of its proper divisors (307401345575).

1398871542745 is a wasteful number, since it uses less digits than its factorization.

1398871542745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6025.

The product of its digits is 67737600, while the sum is 64.

The spelling of 1398871542745 in words is "one trillion, three hundred ninety-eight billion, eight hundred seventy-one million, five hundred forty-two thousand, seven hundred forty-five".