1398631534537 has 16 divisors (see below), whose sum is σ = 1497722389632. Its totient is φ = 1302847934080.

The previous prime is 1398631534501. The next prime is 1398631534633. The reversal of 1398631534537 is 7354351368931.

It is not a de Polignac number, because 1398631534537 - 2²³ = 1398623145929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398631535537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806143 + ... + 1856644.

It is an arithmetic number, because the mean of its divisors is an integer number (93607649352).

Almost surely, 2^{1398631534537} is an apocalyptic number.

It is an amenable number.

1398631534537 is a deficient number, since it is larger than the sum of its proper divisors (99090855095).

1398631534537 is a wasteful number, since it uses less digits than its factorization.

1398631534537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663408.

The product of its digits is 24494400, while the sum is 58.

The spelling of 1398631534537 in words is "one trillion, three hundred ninety-eight billion, six hundred thirty-one million, five hundred thirty-four thousand, five hundred thirty-seven".