28019100554 has 8 divisors (see below), whose sum is σ = 42030480420. Its totient is φ = 14008940416.

The previous prime is 28019100539. The next prime is 28019100563. The reversal of 28019100554 is 45500191082.

It can be written as a sum of positive squares in 2 ways, for example, as 27904032025 + 115068529 = 167045^2 + 10727^2 .

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

It is a super-4 number, since 4×28019100554⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245159 + ... + 340794.

Almost surely, 2^28019100554 is an apocalyptic number.

28019100554 is a deficient number, since it is larger than the sum of its proper divisors (14011379866).

28019100554 is a wasteful number, since it uses less digits than its factorization.

28019100554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609864.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 28019100554 in words is "twenty-eight billion, nineteen million, one hundred thousand, five hundred fifty-four".