84380657451 has 16 divisors (see below), whose sum is σ = 118176668160. Its totient is φ = 53451604800.

The previous prime is 84380657429. The next prime is 84380657461. The reversal of 84380657451 is 15475608348.

It is not a de Polignac number, because 84380657451 - 2²⁵ = 84347103019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84380657394 and 84380657403.

It is not an unprimeable number, because it can be changed into a prime (84380657461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4038946 + ... + 4059783.

It is an arithmetic number, because the mean of its divisors is an integer number (7386041760).

Almost surely, 2^84380657451 is an apocalyptic number.

84380657451 is a deficient number, since it is larger than the sum of its proper divisors (33796010709).

84380657451 is a wasteful number, since it uses less digits than its factorization.

84380657451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8098906.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 84380657451 in words is "eighty-four billion, three hundred eighty million, six hundred fifty-seven thousand, four hundred fifty-one".