7381215051 has 16 divisors (see below), whose sum is σ = 11249297664. Its totient is φ = 4217187744.

The previous prime is 7381215047. The next prime is 7381215161. The reversal of 7381215051 is 1505121837.

It is not a de Polignac number, because 7381215051 - 2² = 7381215047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7381215851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135201 + ... + 181773.

It is an arithmetic number, because the mean of its divisors is an integer number (703081104).

Almost surely, 2^7381215051 is an apocalyptic number.

7381215051 is a deficient number, since it is larger than the sum of its proper divisors (3868082613).

7381215051 is a wasteful number, since it uses less digits than its factorization.

7381215051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54130.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 7381215051 is about 85913.9979921782. The cubic root of 7381215051 is about 1947.0448379451.

Adding to 7381215051 its reverse (1505121837), we get a palindrome (8886336888).

The spelling of 7381215051 in words is "seven billion, three hundred eighty-one million, two hundred fifteen thousand, fifty-one".