7477380121 has 8 divisors (see below), whose sum is σ = 7556568320. Its totient is φ = 7398235008.

The previous prime is 7477380107. The next prime is 7477380139. The reversal of 7477380121 is 1210837747.

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

It is not a de Polignac number, because 7477380121 - 2²⁹ = 6940509209 is a prime.

It is a super-2 number, since 2×7477380121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7477380151) 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, 434560 + ... + 451438.

It is an arithmetic number, because the mean of its divisors is an integer number (944571040).

Almost surely, 2^7477380121 is an apocalyptic number.

It is an amenable number.

7477380121 is a deficient number, since it is larger than the sum of its proper divisors (79188199).

7477380121 is a wasteful number, since it uses less digits than its factorization.

7477380121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21543.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 7477380121 is about 86471.8458285701. The cubic root of 7477380121 is about 1955.4639759743.

The spelling of 7477380121 in words is "seven billion, four hundred seventy-seven million, three hundred eighty thousand, one hundred twenty-one".