61009131926 has 8 divisors (see below), whose sum is σ = 91517079744. Its totient is φ = 30503438680.

The previous prime is 61009131923. The next prime is 61009132001. The reversal of 61009131926 is 62913190016.

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

It is a super-2 number, since 2×61009131926² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61009131926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61009131923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494285 + ... + 605256.

It is an arithmetic number, because the mean of its divisors is an integer number (11439634968).

Almost surely, 2^61009131926 is an apocalyptic number.

61009131926 is a deficient number, since it is larger than the sum of its proper divisors (30507947818).

61009131926 is a wasteful number, since it uses less digits than its factorization.

61009131926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127286.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 61009131926 in words is "sixty-one billion, nine million, one hundred thirty-one thousand, nine hundred twenty-six".