140778107721470 has 16 divisors (see below), whose sum is σ = 253555389648288. Its totient is φ = 56276844033120.

The previous prime is 140778107721469. The next prime is 140778107721551. The reversal of 140778107721470 is 74127701877041.

It is a super-2 number, since 2×140778107721470² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4299864746 + ... + 4299897485.

It is an arithmetic number, because the mean of its divisors is an integer number (15847211853018).

Almost surely, 2^{140778107721470} is an apocalyptic number.

140778107721470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140778107721470 is a deficient number, since it is larger than the sum of its proper divisors (112777281926818).

140778107721470 is a wasteful number, since it uses less digits than its factorization.

140778107721470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599763875.

The product of its (nonzero) digits is 4302592, while the sum is 56.

The spelling of 140778107721470 in words is "one hundred forty trillion, seven hundred seventy-eight billion, one hundred seven million, seven hundred twenty-one thousand, four hundred seventy".