84672139057 has 8 divisors (see below), whose sum is σ = 95554765440. Its totient is φ = 74320372560.

The previous prime is 84672139007. The next prime is 84672139081. The reversal of 84672139057 is 75093127648.

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 84672139057 - 2²⁷ = 84537921329 is a prime.

It is a super-2 number, since 2×84672139057² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84672138995 and 84672139013.

It is not an unprimeable number, because it can be changed into a prime (84672139007) 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, 132714633 + ... + 132715270.

It is an arithmetic number, because the mean of its divisors is an integer number (11944345680).

It is a 1-persistent number, because it is pandigital, but 2⋅84672139057 = 169344278114 is not.

Almost surely, 2^84672139057 is an apocalyptic number.

It is an amenable number.

84672139057 is a deficient number, since it is larger than the sum of its proper divisors (10882626383).

84672139057 is a wasteful number, since it uses less digits than its factorization.

84672139057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265429943.

The product of its (nonzero) digits is 2540160, while the sum is 52.

It can be divided in two parts, 84672 and 139057, that added together give a square (223729 = 473²).

The spelling of 84672139057 in words is "eighty-four billion, six hundred seventy-two million, one hundred thirty-nine thousand, fifty-seven".