7651054981 has 4 divisors (see below), whose sum is σ = 7652207200. Its totient is φ = 7649902764.

The previous prime is 7651054967. The next prime is 7651055011. The reversal of 7651054981 is 1894501567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7651054981 - 2⁹ = 7651054469 is a prime.

It is a super-2 number, since 2×7651054981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7651054951) 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, 566091 + ... + 579448.

It is an arithmetic number, because the mean of its divisors is an integer number (1913051800).

Almost surely, 2^7651054981 is an apocalyptic number.

It is an amenable number.

7651054981 is a deficient number, since it is larger than the sum of its proper divisors (1152219).

7651054981 is a wasteful number, since it uses less digits than its factorization.

7651054981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152218.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 7651054981 is about 87470.3091397304. The cubic root of 7651054981 is about 1970.4879086449.

The spelling of 7651054981 in words is "seven billion, six hundred fifty-one million, fifty-four thousand, nine hundred eighty-one".