7961438354 has 16 divisors (see below), whose sum is σ = 12285628992. Its totient is φ = 3867687408.

The previous prime is 7961438341. The next prime is 7961438369. The reversal of 7961438354 is 4538341697.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353684 + ... + 375519.

It is an arithmetic number, because the mean of its divisors is an integer number (767851812).

Almost surely, 2^7961438354 is an apocalyptic number.

7961438354 is a deficient number, since it is larger than the sum of its proper divisors (4324190638).

7961438354 is a wasteful number, since it uses less digits than its factorization.

7961438354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729361.

The product of its digits is 2177280, while the sum is 50.

The square root of 7961438354 is about 89226.8925492757. The cubic root of 7961438354 is about 1996.7813524326.

The spelling of 7961438354 in words is "seven billion, nine hundred sixty-one million, four hundred thirty-eight thousand, three hundred fifty-four".