7743880612551 has 4 divisors (see below), whose sum is σ = 10325174150072. Its totient is φ = 5162587075032.

The previous prime is 7743880612537. The next prime is 7743880612553. The reversal of 7743880612551 is 1552160883477.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7743880612551 - 2¹⁵ = 7743880579783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7743880612491 and 7743880612500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7743880612553) 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, 1290646768756 + ... + 1290646768761.

It is an arithmetic number, because the mean of its divisors is an integer number (2581293537518).

Almost surely, 2^{7743880612551} is an apocalyptic number.

7743880612551 is a deficient number, since it is larger than the sum of its proper divisors (2581293537521).

7743880612551 is a wasteful number, since it uses less digits than its factorization.

7743880612551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581293537520.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 7743880612551 in words is "seven trillion, seven hundred forty-three billion, eight hundred eighty million, six hundred twelve thousand, five hundred fifty-one".