61288037436 has 48 divisors (see below), whose sum is σ = 143290667520. Its totient is φ = 20388645120.

The previous prime is 61288037423. The next prime is 61288037467. The reversal of 61288037436 is 63473088216.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16293796 + ... + 16297556.

It is an arithmetic number, because the mean of its divisors is an integer number (2985222240).

Almost surely, 2^61288037436 is an apocalyptic number.

It is an amenable number.

61288037436 is an abundant number, since it is smaller than the sum of its proper divisors (82002630084).

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

61288037436 is a wasteful number, since it uses less digits than its factorization.

61288037436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6112 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 61288037436 in words is "sixty-one billion, two hundred eighty-eight million, thirty-seven thousand, four hundred thirty-six".