28654998447470 has 8 divisors (see below), whose sum is σ = 51578997205464. Its totient is φ = 11461999378984.

The previous prime is 28654998447409. The next prime is 28654998447479. The reversal of 28654998447470 is 7474489945682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28654998447470² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28654998447391 and 28654998447400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28654998447479) 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, 1432749922364 + ... + 1432749922383.

It is an arithmetic number, because the mean of its divisors is an integer number (6447374650683).

Almost surely, 2^{28654998447470} is an apocalyptic number.

28654998447470 is a deficient number, since it is larger than the sum of its proper divisors (22923998757994).

28654998447470 is a wasteful number, since it uses less digits than its factorization.

28654998447470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2865499844754.

The product of its (nonzero) digits is 3901685760, while the sum is 77.

The spelling of 28654998447470 in words is "twenty-eight trillion, six hundred fifty-four billion, nine hundred ninety-eight million, four hundred forty-seven thousand, four hundred seventy".