85111247362501 has 4 divisors (see below), whose sum is σ = 85113767493612. Its totient is φ = 85108727231392.

The previous prime is 85111247362489. The next prime is 85111247362523. The reversal of 85111247362501 is 10526374211158.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48869956397025 + 36241290965476 = 6990705^2 + 6020074^2 .

It is a cyclic number.

It is not a de Polignac number, because 85111247362501 - 2¹¹ = 85111247360453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85111247362201) 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, 1260014896 + ... + 1260082441.

It is an arithmetic number, because the mean of its divisors is an integer number (21278441873403).

Almost surely, 2^{85111247362501} is an apocalyptic number.

It is an amenable number.

85111247362501 is a deficient number, since it is larger than the sum of its proper divisors (2520131111).

85111247362501 is a wasteful number, since it uses less digits than its factorization.

85111247362501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520131110.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 85111247362501 in words is "eighty-five trillion, one hundred eleven billion, two hundred forty-seven million, three hundred sixty-two thousand, five hundred one".