83526145121 has 4 divisors (see below), whose sum is σ = 87157716672. Its totient is φ = 79894573572.

The previous prime is 83526145117. The next prime is 83526145193. The reversal of 83526145121 is 12154162538.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83526145121 - 2² = 83526145117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83526145321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815785741 + ... + 1815785786.

It is an arithmetic number, because the mean of its divisors is an integer number (21789429168).

Almost surely, 2^83526145121 is an apocalyptic number.

It is an amenable number.

83526145121 is a deficient number, since it is larger than the sum of its proper divisors (3631571551).

83526145121 is a wasteful number, since it uses less digits than its factorization.

83526145121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631571550.

The product of its digits is 57600, while the sum is 38.

The spelling of 83526145121 in words is "eighty-three billion, five hundred twenty-six million, one hundred forty-five thousand, one hundred twenty-one".