2197747629460 has 24 divisors (see below), whose sum is σ = 4740007051080. Its totient is φ = 855339617664.

The previous prime is 2197747629361. The next prime is 2197747629461. The reversal of 2197747629460 is 649267477912.

It can be written as a sum of positive squares in 4 ways, for example, as 1403627823504 + 794119805956 = 1184748^2 + 891134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2197747629392 and 2197747629401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197747629461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484963875 + ... + 1484965354.

It is an arithmetic number, because the mean of its divisors is an integer number (197500293795).

Almost surely, 2^{2197747629460} is an apocalyptic number.

2197747629460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197747629460 is an abundant number, since it is smaller than the sum of its proper divisors (2542259421620).

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

2197747629460 is a wasteful number, since it uses less digits than its factorization.

2197747629460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969929275 (or 2969929273 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 64.

The spelling of 2197747629460 in words is "two trillion, one hundred ninety-seven billion, seven hundred forty-seven million, six hundred twenty-nine thousand, four hundred sixty".