61427019486 has 32 divisors (see below), whose sum is σ = 140690619648. Its totient is φ = 17514826560.

The previous prime is 61427019473. The next prime is 61427019487. The reversal of 61427019486 is 68491072416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61427019487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1468735 + ... + 1509978.

It is an arithmetic number, because the mean of its divisors is an integer number (4396581864).

Almost surely, 2^61427019486 is an apocalyptic number.

61427019486 is an abundant number, since it is smaller than the sum of its proper divisors (79263600162).

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

61427019486 is a wasteful number, since it uses less digits than its factorization.

61427019486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979216.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 61427019486 in words is "sixty-one billion, four hundred twenty-seven million, nineteen thousand, four hundred eighty-six".