7661361903 has 8 divisors (see below), whose sum is σ = 11000929968. Its totient is φ = 4714684224.

The previous prime is 7661361889. The next prime is 7661361913. The reversal of 7661361903 is 3091631667.

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

It is not a de Polignac number, because 7661361903 - 2¹² = 7661357807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661361913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98222550 + ... + 98222627.

It is an arithmetic number, because the mean of its divisors is an integer number (1375116246).

Almost surely, 2^7661361903 is an apocalyptic number.

7661361903 is a deficient number, since it is larger than the sum of its proper divisors (3339568065).

7661361903 is a wasteful number, since it uses less digits than its factorization.

7661361903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196445193.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 7661361903 is about 87529.2060000546. The cubic root of 7661361903 is about 1971.3723423238.

The spelling of 7661361903 in words is "seven billion, six hundred sixty-one million, three hundred sixty-one thousand, nine hundred three".