61767090004 has 12 divisors (see below), whose sum is σ = 108117292500. Its totient is φ = 30876435008.

The previous prime is 61767089957. The next prime is 61767090041. The reversal of 61767090004 is 40009076716.

It can be written as a sum of positive squares in 2 ways, for example, as 4479624900 + 57287465104 = 66930^2 + 239348^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757929 + ... + 1792720.

It is an arithmetic number, because the mean of its divisors is an integer number (9009774375).

Almost surely, 2^61767090004 is an apocalyptic number.

It is an amenable number.

61767090004 is a deficient number, since it is larger than the sum of its proper divisors (46350202496).

61767090004 is a wasteful number, since it uses less digits than its factorization.

61767090004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555002 (or 3555000 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 61767090004 in words is "sixty-one billion, seven hundred sixty-seven million, ninety thousand, four".