1954774995 has 8 divisors (see below), whose sum is σ = 3127640016. Its totient is φ = 1042546656.

The previous prime is 1954774993. The next prime is 1954775003. The reversal of 1954774995 is 5994774591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1954774995 - 2¹ = 1954774993 is a prime.

It is a super-2 number, since 2×1954774995² = 7642290562154500050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1954774993) 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 7 ways as a sum of consecutive naturals, for example, 65159152 + ... + 65159181.

It is an arithmetic number, because the mean of its divisors is an integer number (390955002).

Almost surely, 2^1954774995 is an apocalyptic number.

1954774995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1954774995 is a deficient number, since it is larger than the sum of its proper divisors (1172865021).

1954774995 is a wasteful number, since it uses less digits than its factorization.

1954774995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130318341.

The product of its digits is 14288400, while the sum is 60.

The square root of 1954774995 is about 44212.8374457012. The cubic root of 1954774995 is about 1250.3518998572.

The spelling of 1954774995 in words is "one billion, nine hundred fifty-four million, seven hundred seventy-four thousand, nine hundred ninety-five".