28677378000 has 80 divisors (see below), whose sum is σ = 92455886016. Its totient is φ = 7647299200.

The previous prime is 28677377969. The next prime is 28677378001. The reversal of 28677378000 is 87377682.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28677378001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2383782 + ... + 2395781.

Almost surely, 2^28677378000 is an apocalyptic number.

28677378000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28677378000 is an abundant number, since it is smaller than the sum of its proper divisors (63778508016).

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

28677378000 is a wasteful number, since it uses less digits than its factorization.

28677378000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779589 (or 4779573 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 28677378000 in words is "twenty-eight billion, six hundred seventy-seven million, three hundred seventy-eight thousand".