140779102464 has 576 divisors, whose sum is σ = 558987233280. Its totient is φ = 33751572480.

The previous prime is 140779102463. The next prime is 140779102483. The reversal of 140779102464 is 464201977041.

140779102464 is a `hidden beast` number, since 14 + 0 + 7 + 79 + 102 + 464 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (140779102463) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6908739 + ... + 6929085.

Almost surely, 2^140779102464 is an apocalyptic number.

140779102464 is a gapful number since it is divisible by the number (14) 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 140779102464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279493616640).

140779102464 is an abundant number, since it is smaller than the sum of its proper divisors (418208130816).

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

140779102464 is a wasteful number, since it uses less digits than its factorization.

140779102464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20403 (or 20383 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 140779102464 in words is "one hundred forty billion, seven hundred seventy-nine million, one hundred two thousand, four hundred sixty-four".