84615470077 has 4 divisors (see below), whose sum is σ = 84737924416. Its totient is φ = 84493015740.

The previous prime is 84615470057. The next prime is 84615470087. The reversal of 84615470077 is 77007451648.

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 84615470077 - 2⁷ = 84615469949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84615470077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84615470057) 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, 61226133 + ... + 61227514.

It is an arithmetic number, because the mean of its divisors is an integer number (21184481104).

Almost surely, 2^84615470077 is an apocalyptic number.

It is an amenable number.

84615470077 is a deficient number, since it is larger than the sum of its proper divisors (122454339).

84615470077 is a wasteful number, since it uses less digits than its factorization.

84615470077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122454338.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 84615470077 in words is "eighty-four billion, six hundred fifteen million, four hundred seventy thousand, seventy-seven".