21763147552 has 24 divisors (see below), whose sum is σ = 42943824000. Its totient is φ = 10856779584.

The previous prime is 21763147547. The next prime is 21763147603. The reversal of 21763147552 is 25574136712.

It is a happy number.

It is a super-3 number, since 3×21763147552³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21763147499 and 21763147508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760552 + ... + 788647.

It is an arithmetic number, because the mean of its divisors is an integer number (1789326000).

Almost surely, 2^21763147552 is an apocalyptic number.

It is an amenable number.

21763147552 is a deficient number, since it is larger than the sum of its proper divisors (21180676448).

21763147552 is a wasteful number, since it uses less digits than its factorization.

21763147552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549648 (or 1549640 counting only the distinct ones).

The product of its digits is 352800, while the sum is 43.

The spelling of 21763147552 in words is "twenty-one billion, seven hundred sixty-three million, one hundred forty-seven thousand, five hundred fifty-two".