5402139780 has 24 divisors (see below), whose sum is σ = 15125991552. Its totient is φ = 1440570592.

The previous prime is 5402139733. The next prime is 5402139781. The reversal of 5402139780 is 879312045.

It is a super-2 number, since 2×5402139780² = 58366228405316896800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5402139781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45017772 + ... + 45017891.

It is an arithmetic number, because the mean of its divisors is an integer number (630249648).

Almost surely, 2^5402139780 is an apocalyptic number.

It is an amenable number.

5402139780 is an abundant number, since it is smaller than the sum of its proper divisors (9723851772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5402139780 is a wasteful number, since it uses less digits than its factorization.

5402139780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90035675 (or 90035673 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 5402139780 is about 73499.2502002571. The cubic root of 5402139780 is about 1754.6423439808.

The spelling of 5402139780 in words is "five billion, four hundred two million, one hundred thirty-nine thousand, seven hundred eighty".