61310251442 has 8 divisors (see below), whose sum is σ = 100325866032. Its totient is φ = 27868296100.

The previous prime is 61310251423. The next prime is 61310251447. The reversal of 61310251442 is 24415201316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (61310251447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393414784 + ... + 1393414827.

It is an arithmetic number, because the mean of its divisors is an integer number (12540733254).

Almost surely, 2^61310251442 is an apocalyptic number.

61310251442 is a deficient number, since it is larger than the sum of its proper divisors (39015614590).

61310251442 is a wasteful number, since it uses less digits than its factorization.

61310251442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786829624.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 61310251442 its reverse (24415201316), we get a palindrome (85725452758).

The spelling of 61310251442 in words is "sixty-one billion, three hundred ten million, two hundred fifty-one thousand, four hundred forty-two".