84756102061 has 8 divisors (see below), whose sum is σ = 89333043480. Its totient is φ = 80289448512.

The previous prime is 84756102049. The next prime is 84756102127. The reversal of 84756102061 is 16020165748.

It can be written as a sum of positive squares in 4 ways, for example, as 45755776836 + 39000325225 = 213906^2 + 197485^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 84756102061 - 2⁷ = 84756101933 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 (84756102001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27570390 + ... + 27573463.

It is an arithmetic number, because the mean of its divisors is an integer number (11166630435).

Almost surely, 2^84756102061 is an apocalyptic number.

It is an amenable number.

84756102061 is a deficient number, since it is larger than the sum of its proper divisors (4576941419).

84756102061 is a wasteful number, since it uses less digits than its factorization.

84756102061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55143935.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 84756102061 in words is "eighty-four billion, seven hundred fifty-six million, one hundred two thousand, sixty-one".