7876545405 has 16 divisors (see below), whose sum is σ = 12621554304. Its totient is φ = 4194463680.

The previous prime is 7876545359. The next prime is 7876545407. The reversal of 7876545405 is 5045456787.

It is not a de Polignac number, because 7876545405 - 2⁷ = 7876545277 is a prime.

It is a super-2 number, since 2×7876545405² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7876545407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387289 + ... + 407118.

It is an arithmetic number, because the mean of its divisors is an integer number (788847144).

Almost surely, 2^7876545405 is an apocalyptic number.

It is an amenable number.

7876545405 is a deficient number, since it is larger than the sum of its proper divisors (4745008899).

7876545405 is a wasteful number, since it uses less digits than its factorization.

7876545405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795076.

The product of its (nonzero) digits is 4704000, while the sum is 51.

The square root of 7876545405 is about 88749.9036900886. The cubic root of 7876545405 is about 1989.6587383969.

The spelling of 7876545405 in words is "seven billion, eight hundred seventy-six million, five hundred forty-five thousand, four hundred five".