61514705679 has 8 divisors (see below), whose sum is σ = 93736694400. Its totient is φ = 35151260376.

The previous prime is 61514705671. The next prime is 61514705699. The reversal of 61514705679 is 97650741516.

It is a happy number.

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

It is not a de Polignac number, because 61514705679 - 2³ = 61514705671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61514705671) 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, 1464635829 + ... + 1464635870.

It is an arithmetic number, because the mean of its divisors is an integer number (11717086800).

Almost surely, 2^61514705679 is an apocalyptic number.

61514705679 is a deficient number, since it is larger than the sum of its proper divisors (32221988721).

61514705679 is a wasteful number, since it uses less digits than its factorization.

61514705679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929271709.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 61514705679 in words is "sixty-one billion, five hundred fourteen million, seven hundred five thousand, six hundred seventy-nine".