61344497494 has 16 divisors (see below), whose sum is σ = 105168070656. Its totient is φ = 26288980200.

The previous prime is 61344497491. The next prime is 61344497519. The reversal of 61344497494 is 49479444316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61344497491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144459 + ... + 378889.

It is an arithmetic number, because the mean of its divisors is an integer number (6573004416).

Almost surely, 2^61344497494 is an apocalyptic number.

61344497494 is a deficient number, since it is larger than the sum of its proper divisors (43823573162).

61344497494 is a wasteful number, since it uses less digits than its factorization.

61344497494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253131.

The product of its digits is 10450944, while the sum is 55.

The spelling of 61344497494 in words is "sixty-one billion, three hundred forty-four million, four hundred ninety-seven thousand, four hundred ninety-four".