44661653461 has 4 divisors (see below), whose sum is σ = 45750962124. Its totient is φ = 43572344800.

The previous prime is 44661653453. The next prime is 44661653507. The reversal of 44661653461 is 16435616644.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8483331025 + 36178322436 = 92105^2 + 190206^2 .

It is a cyclic number.

It is not a de Polignac number, because 44661653461 - 2³ = 44661653453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44661663461) 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, 544654270 + ... + 544654351.

It is an arithmetic number, because the mean of its divisors is an integer number (11437740531).

Almost surely, 2^44661653461 is an apocalyptic number.

44661653461 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44661653461 is a deficient number, since it is larger than the sum of its proper divisors (1089308663).

44661653461 is a wasteful number, since it uses less digits than its factorization.

44661653461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089308662.

The product of its digits is 1244160, while the sum is 46.

The spelling of 44661653461 in words is "forty-four billion, six hundred sixty-one million, six hundred fifty-three thousand, four hundred sixty-one".