61711397725706 has 4 divisors (see below), whose sum is σ = 92567096588562. Its totient is φ = 30855698862852.

The previous prime is 61711397725639. The next prime is 61711397725721. The reversal of 61711397725706 is 60752779311716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52254696445081 + 9456701280625 = 7228741^2 + 3075175^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15427849431425 + ... + 15427849431428.

Almost surely, 2^{61711397725706} is an apocalyptic number.

61711397725706 is a deficient number, since it is larger than the sum of its proper divisors (30855698862856).

61711397725706 is a wasteful number, since it uses less digits than its factorization.

61711397725706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30855698862855.

The product of its (nonzero) digits is 23337720, while the sum is 62.

The spelling of 61711397725706 in words is "sixty-one trillion, seven hundred eleven billion, three hundred ninety-seven million, seven hundred twenty-five thousand, seven hundred six".