84701555479 has 2 divisors, whose sum is σ = 84701555480. Its totient is φ = 84701555478.

The previous prime is 84701555467. The next prime is 84701555501. The reversal of 84701555479 is 97455510748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84701555479 - 2⁵ = 84701555447 is a prime.

It is a super-2 number, since 2×84701555479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84701555179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42350777739 + 42350777740.

It is an arithmetic number, because the mean of its divisors is an integer number (42350777740).

Almost surely, 2^84701555479 is an apocalyptic number.

84701555479 is a deficient number, since it is larger than the sum of its proper divisors (1).

84701555479 is an equidigital number, since it uses as much as digits as its factorization.

84701555479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056000, while the sum is 55.

The spelling of 84701555479 in words is "eighty-four billion, seven hundred one million, five hundred fifty-five thousand, four hundred seventy-nine".