4721251642340 has 24 divisors (see below), whose sum is σ = 9986998005432. Its totient is φ = 1874715979520.

The previous prime is 4721251642313. The next prime is 4721251642423. The reversal of 4721251642340 is 432461521274.

It can be written as a sum of positive squares in 4 ways, for example, as 716474216704 + 4004777425636 = 846448^2 + 2001194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861539531 + ... + 861545010.

It is an arithmetic number, because the mean of its divisors is an integer number (416124916893).

Almost surely, 2^{4721251642340} is an apocalyptic number.

It is an amenable number.

4721251642340 is an abundant number, since it is smaller than the sum of its proper divisors (5265746363092).

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

4721251642340 is a wasteful number, since it uses less digits than its factorization.

4721251642340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723084687 (or 1723084685 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 4721251642340 in words is "four trillion, seven hundred twenty-one billion, two hundred fifty-one million, six hundred forty-two thousand, three hundred forty".