61710378272 has 24 divisors (see below), whose sum is σ = 121656754800. Its totient is φ = 30813424704.

The previous prime is 61710378269. The next prime is 61710378287. The reversal of 61710378272 is 27287301716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1281122 + ... + 1328417.

It is an arithmetic number, because the mean of its divisors is an integer number (5069031450).

Almost surely, 2^61710378272 is an apocalyptic number.

It is an amenable number.

61710378272 is a deficient number, since it is larger than the sum of its proper divisors (59946376528).

61710378272 is a wasteful number, since it uses less digits than its factorization.

61710378272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610288 (or 2610280 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

Adding to 61710378272 its reverse (27287301716), we get a palindrome (88997679988).

The spelling of 61710378272 in words is "sixty-one billion, seven hundred ten million, three hundred seventy-eight thousand, two hundred seventy-two".