28953763434 has 24 divisors (see below), whose sum is σ = 66034899840. Its totient is φ = 9143293608.

The previous prime is 28953763373. The next prime is 28953763459. The reversal of 28953763434 is 43436735982.

28953763434 is a `hidden beast` number, since 2 + 8 + 9 + 537 + 63 + 43 + 4 = 666.

It is a super-4 number, since 4×28953763434⁴ (a number of 43 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42329722 + ... + 42330405.

It is an arithmetic number, because the mean of its divisors is an integer number (2751454160).

Almost surely, 2^28953763434 is an apocalyptic number.

28953763434 is an abundant number, since it is smaller than the sum of its proper divisors (37081136406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28953763434 is a wasteful number, since it uses less digits than its factorization.

28953763434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84660154 (or 84660151 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 28953763434 in words is "twenty-eight billion, nine hundred fifty-three million, seven hundred sixty-three thousand, four hundred thirty-four".