511016728378 has 32 divisors (see below), whose sum is σ = 836862485760. Its totient is φ = 232610788800.

The previous prime is 511016728357. The next prime is 511016728423. The reversal of 511016728378 is 873827610115.

It is a super-2 number, since 2×511016728378² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1725828 + ... + 2000128.

It is an arithmetic number, because the mean of its divisors is an integer number (26151952680).

Almost surely, 2^511016728378 is an apocalyptic number.

511016728378 is a deficient number, since it is larger than the sum of its proper divisors (325845757382).

511016728378 is a wasteful number, since it uses less digits than its factorization.

511016728378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275302.

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 511016728378 in words is "five hundred eleven billion, sixteen million, seven hundred twenty-eight thousand, three hundred seventy-eight".