61736450121 has 24 divisors (see below), whose sum is σ = 92487832320. Its totient is φ = 39641162400.

The previous prime is 61736450119. The next prime is 61736450123. The reversal of 61736450121 is 12105463716.

61736450121 is a `hidden beast` number, since 6 + 1 + 7 + 3 + 645 + 0 + 1 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (61736450119) and next prime (61736450123).

It is not a de Polignac number, because 61736450121 - 2¹ = 61736450119 is a prime.

It is a super-3 number, since 3×61736450121³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (61736450123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465486 + ... + 583223.

It is an arithmetic number, because the mean of its divisors is an integer number (3853659680).

Almost surely, 2^61736450121 is an apocalyptic number.

It is an amenable number.

61736450121 is a deficient number, since it is larger than the sum of its proper divisors (30751382199).

61736450121 is a wasteful number, since it uses less digits than its factorization.

61736450121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048957 (or 1048954 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 61736450121 in words is "sixty-one billion, seven hundred thirty-six million, four hundred fifty thousand, one hundred twenty-one".