61351506514 has 8 divisors (see below), whose sum is σ = 92043306828. Its totient is φ = 30670404240.

The previous prime is 61351506511. The next prime is 61351506523. The reversal of 61351506514 is 41560515316.

It can be written as a sum of positive squares in 2 ways, for example, as 61229028025 + 122478489 = 247445^2 + 11067^2 .

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 (61351506511) by changing a digit.

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, 2660157 + ... + 2683120.

Almost surely, 2^61351506514 is an apocalyptic number.

61351506514 is a deficient number, since it is larger than the sum of its proper divisors (30691800314).

61351506514 is a wasteful number, since it uses less digits than its factorization.

61351506514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349020.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 61351506514 in words is "sixty-one billion, three hundred fifty-one million, five hundred six thousand, five hundred fourteen".