28757377550 has 48 divisors (see below), whose sum is σ = 58613248512. Its totient is φ = 10410290400.

The previous prime is 28757377547. The next prime is 28757377603. The reversal of 28757377550 is 5577375782.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5417 + ... + 239883.

It is an arithmetic number, because the mean of its divisors is an integer number (1221109344).

Almost surely, 2^28757377550 is an apocalyptic number.

28757377550 is an abundant number, since it is smaller than the sum of its proper divisors (29855870962).

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

28757377550 is a wasteful number, since it uses less digits than its factorization.

28757377550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234713 (or 234708 counting only the distinct ones).

The product of its (nonzero) digits is 14406000, while the sum is 56.

The spelling of 28757377550 in words is "twenty-eight billion, seven hundred fifty-seven million, three hundred seventy-seven thousand, five hundred fifty".