45977742109 has 8 divisors (see below), whose sum is σ = 49875913080. Its totient is φ = 42131202816.

The previous prime is 45977742091. The next prime is 45977742121. The reversal of 45977742109 is 90124777954.

It can be written as a sum of positive squares in 4 ways, for example, as 42536484 + 45935205625 = 6522^2 + 214325^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45977742109 is a prime.

It is a super-2 number, since 2×45977742109² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45977742109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45977742149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12906064 + ... + 12909625.

It is an arithmetic number, because the mean of its divisors is an integer number (6234489135).

Almost surely, 2^45977742109 is an apocalyptic number.

It is an amenable number.

45977742109 is a deficient number, since it is larger than the sum of its proper divisors (3898170971).

45977742109 is a wasteful number, since it uses less digits than its factorization.

45977742109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25815839.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 45977742109 in words is "forty-five billion, nine hundred seventy-seven million, seven hundred forty-two thousand, one hundred nine".