61759414820 has 12 divisors (see below), whose sum is σ = 129694771164. Its totient is φ = 24703765920.

The previous prime is 61759414777. The next prime is 61759414879. The reversal of 61759414820 is 2841495716.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29608773184 + 32150641636 = 172072^2 + 179306^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543985351 + ... + 1543985390.

It is an arithmetic number, because the mean of its divisors is an integer number (10807897597).

Almost surely, 2^61759414820 is an apocalyptic number.

It is an amenable number.

61759414820 is an abundant number, since it is smaller than the sum of its proper divisors (67935356344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61759414820 is a wasteful number, since it uses less digits than its factorization.

61759414820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087970750 (or 3087970748 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 61759414820 in words is "sixty-one billion, seven hundred fifty-nine million, four hundred fourteen thousand, eight hundred twenty".