44870651785 has 16 divisors (see below), whose sum is σ = 57021530256. Its totient is φ = 33779386368.

The previous prime is 44870651743. The next prime is 44870651809. The reversal of 44870651785 is 58715607844.

It can be written as a sum of positive squares in 8 ways, for example, as 43599609 + 44827052176 = 6603^2 + 211724^2 .

It is a cyclic number.

It is not a de Polignac number, because 44870651785 - 2¹¹ = 44870649737 is a prime.

It is a super-2 number, since 2×44870651785² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516727 + ... + 597283.

It is an arithmetic number, because the mean of its divisors is an integer number (3563845641).

Almost surely, 2^44870651785 is an apocalyptic number.

It is an amenable number.

44870651785 is a deficient number, since it is larger than the sum of its proper divisors (12150878471).

44870651785 is a wasteful number, since it uses less digits than its factorization.

44870651785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87132.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 44870651785 in words is "forty-four billion, eight hundred seventy million, six hundred fifty-one thousand, seven hundred eighty-five".