7387820012551 has 4 divisors (see below), whose sum is σ = 8059440013704. Its totient is φ = 6716200011400.

The previous prime is 7387820012543. The next prime is 7387820012581. The reversal of 7387820012551 is 1552100287837.

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

It is not a de Polignac number, because 7387820012551 - 2³ = 7387820012543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7387820012495 and 7387820012504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7387820012581) 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 3 ways as a sum of consecutive naturals, for example, 335810000560 + ... + 335810000581.

It is an arithmetic number, because the mean of its divisors is an integer number (2014860003426).

Almost surely, 2^{7387820012551} is an apocalyptic number.

7387820012551 is a deficient number, since it is larger than the sum of its proper divisors (671620001153).

7387820012551 is a wasteful number, since it uses less digits than its factorization.

7387820012551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671620001152.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 7387820012551 in words is "seven trillion, three hundred eighty-seven billion, eight hundred twenty million, twelve thousand, five hundred fifty-one".