39061861604 has 6 divisors (see below), whose sum is σ = 68358257814. Its totient is φ = 19530930800.

The previous prime is 39061861577. The next prime is 39061861651. The reversal of 39061861604 is 40616816093.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37063950400 + 1997911204 = 192520^2 + 44698^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4882732697 + ... + 4882732704.

It is an arithmetic number, because the mean of its divisors is an integer number (11393042969).

Almost surely, 2^39061861604 is an apocalyptic number.

It is an amenable number.

39061861604 is a deficient number, since it is larger than the sum of its proper divisors (29296396210).

39061861604 is a wasteful number, since it uses less digits than its factorization.

39061861604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765465405 (or 9765465403 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 39061861604 in words is "thirty-nine billion, sixty-one million, eight hundred sixty-one thousand, six hundred four".