42721101770260 has 96 divisors (see below), whose sum is σ = 96056981959680. Its totient is φ = 15911589196800.

The previous prime is 42721101770219. The next prime is 42721101770267. The reversal of 42721101770260 is 6207710112724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42721101770267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29923197 + ... + 31318363.

It is an arithmetic number, because the mean of its divisors is an integer number (1000593562080).

Almost surely, 2^{42721101770260} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42721101770260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48028490979840).

42721101770260 is an abundant number, since it is smaller than the sum of its proper divisors (53335880189420).

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

42721101770260 is a wasteful number, since it uses less digits than its factorization.

42721101770260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396577 (or 1396575 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

Adding to 42721101770260 its reverse (6207710112724), we get a palindrome (48928811882984).

The spelling of 42721101770260 in words is "forty-two trillion, seven hundred twenty-one billion, one hundred one million, seven hundred seventy thousand, two hundred sixty".