28214653740 has 144 divisors (see below), whose sum is σ = 98968457952. Its totient is φ = 5952973824.

The previous prime is 28214653717. The next prime is 28214653741. The reversal of 28214653740 is 4735641282.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 28214653692 and 28214653701.

It is not an unprimeable number, because it can be changed into a prime (28214653741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330889 + ... + 407328.

It is an arithmetic number, because the mean of its divisors is an integer number (687280958).

Almost surely, 2^28214653740 is an apocalyptic number.

28214653740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28214653740 is an abundant number, since it is smaller than the sum of its proper divisors (70753804212).

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

28214653740 is a wasteful number, since it uses less digits than its factorization.

28214653740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738256 (or 738247 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28214653740 in words is "twenty-eight billion, two hundred fourteen million, six hundred fifty-three thousand, seven hundred forty".