6954948781 has 4 divisors (see below), whose sum is σ = 7587216864. Its totient is φ = 6322680700.

The previous prime is 6954948769. The next prime is 6954948811. The reversal of 6954948781 is 1878494596.

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 6954948781 - 2¹³ = 6954940589 is a prime.

It is a super-2 number, since 2×6954948781² = 96742625092666771922, which 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 (6954948701) 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, 316134025 + ... + 316134046.

It is an arithmetic number, because the mean of its divisors is an integer number (1896804216).

Almost surely, 2^6954948781 is an apocalyptic number.

It is an amenable number.

6954948781 is a deficient number, since it is larger than the sum of its proper divisors (632268083).

6954948781 is a wasteful number, since it uses less digits than its factorization.

6954948781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632268082.

The product of its digits is 17418240, while the sum is 61.

The square root of 6954948781 is about 83396.3355370007. The cubic root of 6954948781 is about 1908.8185433959.

The spelling of 6954948781 in words is "six billion, nine hundred fifty-four million, nine hundred forty-eight thousand, seven hundred eighty-one".