61038838774 has 4 divisors (see below), whose sum is σ = 91558258164. Its totient is φ = 30519419386.

The previous prime is 61038838771. The next prime is 61038838781. The reversal of 61038838774 is 47783883016.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61038838771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15259709692 + ... + 15259709695.

It is an arithmetic number, because the mean of its divisors is an integer number (22889564541).

Almost surely, 2^61038838774 is an apocalyptic number.

61038838774 is a deficient number, since it is larger than the sum of its proper divisors (30519419390).

61038838774 is a wasteful number, since it uses less digits than its factorization.

61038838774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30519419389.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 61038838774 in words is "sixty-one billion, thirty-eight million, eight hundred thirty-eight thousand, seven hundred seventy-four".