61682146077 has 16 divisors (see below), whose sum is σ = 83767440960. Its totient is φ = 40361318400.

The previous prime is 61682146049. The next prime is 61682146093. The reversal of 61682146077 is 77064128616.

It is not a de Polignac number, because 61682146077 - 2²² = 61677951773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61682146777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158374 + ... + 385287.

It is an arithmetic number, because the mean of its divisors is an integer number (5235465060).

Almost surely, 2^61682146077 is an apocalyptic number.

It is an amenable number.

61682146077 is a deficient number, since it is larger than the sum of its proper divisors (22085294883).

61682146077 is a wasteful number, since it uses less digits than its factorization.

61682146077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544364.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 61682146077 in words is "sixty-one billion, six hundred eighty-two million, one hundred forty-six thousand, seventy-seven".