7661274446 has 16 divisors (see below), whose sum is σ = 13200286176. Its totient is φ = 3266735136.

The previous prime is 7661274437. The next prime is 7661274461. The reversal of 7661274446 is 6444721667.

It is a super-2 number, since 2×7661274446² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7661274446.

It is a congruent 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, 1386161 + ... + 1391676.

It is an arithmetic number, because the mean of its divisors is an integer number (825017886).

Almost surely, 2^7661274446 is an apocalyptic number.

7661274446 is a deficient number, since it is larger than the sum of its proper divisors (5539011730).

7661274446 is a wasteful number, since it uses less digits than its factorization.

7661274446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778043.

The product of its digits is 1354752, while the sum is 47.

The square root of 7661274446 is about 87528.7064110969. The cubic root of 7661274446 is about 1971.3648410045.

The spelling of 7661274446 in words is "seven billion, six hundred sixty-one million, two hundred seventy-four thousand, four hundred forty-six".