61019237906 has 16 divisors (see below), whose sum is σ = 101255997888. Its totient is φ = 27345368400.

The previous prime is 61019237893. The next prime is 61019237927. The reversal of 61019237906 is 60973291016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19530845 + ... + 19533968.

It is an arithmetic number, because the mean of its divisors is an integer number (6328499868).

Almost surely, 2^61019237906 is an apocalyptic number.

61019237906 is a deficient number, since it is larger than the sum of its proper divisors (40236759982).

61019237906 is a wasteful number, since it uses less digits than its factorization.

61019237906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39064897.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 61019237906 in words is "sixty-one billion, nineteen million, two hundred thirty-seven thousand, nine hundred six".