84735203528638 has 16 divisors (see below), whose sum is σ = 136948281711696. Its totient is φ = 39089030460480.

The previous prime is 84735203528623. The next prime is 84735203528653. The reversal of 84735203528638 is 83682530253748.

It is an interprime number because it is at equal distance from previous prime (84735203528623) and next prime (84735203528653).

It is a super-2 number, since 2×84735203528638² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84735203528638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813489183 + ... + 813593338.

It is an arithmetic number, because the mean of its divisors is an integer number (8559267606981).

Almost surely, 2^{84735203528638} is an apocalyptic number.

84735203528638 is a deficient number, since it is larger than the sum of its proper divisors (52213078183058).

84735203528638 is a wasteful number, since it uses less digits than its factorization.

84735203528638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627084539.

The product of its (nonzero) digits is 232243200, while the sum is 64.

The spelling of 84735203528638 in words is "eighty-four trillion, seven hundred thirty-five billion, two hundred three million, five hundred twenty-eight thousand, six hundred thirty-eight".