61510262442 has 16 divisors (see below), whose sum is σ = 124214900160. Its totient is φ = 20304358272.

The previous prime is 61510262383. The next prime is 61510262477. The reversal of 61510262442 is 24426201516.

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 7 ways as a sum of consecutive naturals, for example, 49764967 + ... + 49766202.

It is an arithmetic number, because the mean of its divisors is an integer number (7763431260).

Almost surely, 2^61510262442 is an apocalyptic number.

61510262442 is an abundant number, since it is smaller than the sum of its proper divisors (62704637718).

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

61510262442 is a wasteful number, since it uses less digits than its factorization.

61510262442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99531277.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 61510262442 its reverse (24426201516), we get a palindrome (85936463958).

The spelling of 61510262442 in words is "sixty-one billion, five hundred ten million, two hundred sixty-two thousand, four hundred forty-two".