61742470418 has 16 divisors (see below), whose sum is σ = 94087920120. Its totient is φ = 30381682176.

The previous prime is 61742470417. The next prime is 61742470441. The reversal of 61742470418 is 81407424716.

It can be written as a sum of positive squares in 4 ways, for example, as 52956595129 + 8785875289 = 230123^2 + 93733^2 .

It is not an unprimeable number, because it can be changed into a prime (61742470411) 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, 395963 + ... + 529406.

Almost surely, 2^61742470418 is an apocalyptic number.

61742470418 is a deficient number, since it is larger than the sum of its proper divisors (32345449702).

61742470418 is a wasteful number, since it uses less digits than its factorization.

61742470418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925901.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 61742470418 in words is "sixty-one billion, seven hundred forty-two million, four hundred seventy thousand, four hundred eighteen".