61011012774 has 8 divisors (see below), whose sum is σ = 122022025560. Its totient is φ = 20337004256.

The previous prime is 61011012743. The next prime is 61011012793. The reversal of 61011012774 is 47721011016.

It is a sphenic number, since it is the product of 3 distinct primes.

61011012774 is an admirable number.

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, 5084251059 + ... + 5084251070.

It is an arithmetic number, because the mean of its divisors is an integer number (15252753195).

Almost surely, 2^61011012774 is an apocalyptic number.

61011012774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61011012774 is a wasteful number, since it uses less digits than its factorization.

61011012774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168502134.

The product of its (nonzero) digits is 2352, while the sum is 30.

The spelling of 61011012774 in words is "sixty-one billion, eleven million, twelve thousand, seven hundred seventy-four".