26630429220 has 72 divisors (see below), whose sum is σ = 80922756096. Its totient is φ = 7088807232.

The previous prime is 26630429197. The next prime is 26630429233. The reversal of 26630429220 is 2292403662.

26630429220 is a `hidden beast` number, since 2 + 6 + 6 + 3 + 0 + 429 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 30052 + ... + 232731.

It is an arithmetic number, because the mean of its divisors is an integer number (1123927168).

Almost surely, 2^26630429220 is an apocalyptic number.

26630429220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26630429220 is an abundant number, since it is smaller than the sum of its proper divisors (54292326876).

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

26630429220 is a wasteful number, since it uses less digits than its factorization.

26630429220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263361 (or 263356 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 26630429220 in words is "twenty-six billion, six hundred thirty million, four hundred twenty-nine thousand, two hundred twenty".