14797178077640 has 256 divisors, whose sum is σ = 39797194752000. Its totient is φ = 4846939776000.

The previous prime is 14797178077607. The next prime is 14797178077691. The reversal of 14797178077640 is 4677087179741.

It is a super-2 number, since 2×14797178077640² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94291961 + ... + 94448759.

It is an arithmetic number, because the mean of its divisors is an integer number (155457792000).

Almost surely, 2^{14797178077640} is an apocalyptic number.

14797178077640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14797178077640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19898597376000).

14797178077640 is an abundant number, since it is smaller than the sum of its proper divisors (25000016674360).

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

14797178077640 is a wasteful number, since it uses less digits than its factorization.

14797178077640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157036 (or 157032 counting only the distinct ones).

The product of its (nonzero) digits is 116169984, while the sum is 68.

The spelling of 14797178077640 in words is "fourteen trillion, seven hundred ninety-seven billion, one hundred seventy-eight million, seventy-seven thousand, six hundred forty".