21890467076 has 48 divisors (see below), whose sum is σ = 39565884288. Its totient is φ = 10592467200.

The previous prime is 21890467073. The next prime is 21890467099. The reversal of 21890467076 is 67076409812.

It is not an unprimeable number, because it can be changed into a prime (21890467073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8744441 + ... + 8746943.

It is an arithmetic number, because the mean of its divisors is an integer number (824289256).

Almost surely, 2^21890467076 is an apocalyptic number.

It is an amenable number.

21890467076 is a deficient number, since it is larger than the sum of its proper divisors (17675417212).

21890467076 is a wasteful number, since it uses less digits than its factorization.

21890467076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3130 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 21890467076 in words is "twenty-one billion, eight hundred ninety million, four hundred sixty-seven thousand, seventy-six".