40777302121 has 4 divisors (see below), whose sum is σ = 40939761744. Its totient is φ = 40614842500.

The previous prime is 40777302119. The next prime is 40777302169. The reversal of 40777302121 is 12120377704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40777302121 - 2¹ = 40777302119 is a prime.

It is a super-2 number, since 2×40777302121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40777302221) 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, 81229435 + ... + 81229936.

It is an arithmetic number, because the mean of its divisors is an integer number (10234940436).

Almost surely, 2^40777302121 is an apocalyptic number.

It is an amenable number.

40777302121 is a deficient number, since it is larger than the sum of its proper divisors (162459623).

40777302121 is a wasteful number, since it uses less digits than its factorization.

40777302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162459622.

The product of its (nonzero) digits is 16464, while the sum is 34.

Adding to 40777302121 its reverse (12120377704), we get a palindrome (52897679825).

The spelling of 40777302121 in words is "forty billion, seven hundred seventy-seven million, three hundred two thousand, one hundred twenty-one".